Optimizing a Multi-Modal Intervention to Reduce Health-Risking Sexual Behaviors: Component Selection

Study Overview
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Brief Summary
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The goal of this project is to evaluate the components of the app-based intervention Mission Wellness to reduce health-risking sexual behaviors (HRSBs; e.g., condom non-use, multiple sexual partners) in active-duty members of the US Military to improve their sexual and reproductive health (SRH) and readiness to serve. Following the multiphase optimization strategy (MOST) framework, factorial component selection experiments (CSEs) will be conducted to evaluate which five experimental intervention components (i.e., Narratives, Skills, Scenarios, Future, and Risk) elicit the greatest improvements in the outcomes of interest given key constraints.

Detailed Description
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Negative SRH outcomes (e.g., sexually transmitted infections [STIs], unintended pregnancy, STI-related cancers) reduce human performance and undermine military readiness. Service members face unique challenges to maintaining SRH during their military service. HRSBs (e.g., multiple sexual partners, unprotected sexual behavior) offer potential intervention targets to improve SRH. Electronic-health interventions are cost-effective and dynamic, and have the potential to reach millions of users as part of an overall strategy for individual behavior and systems change. In civilian populations, e-health interventions have demonstrated success in reducing HRSBs. However, effective HRSB-prevention interventions must consider the specific values, mission, and context of military populations and settings. The MOST framework is used to develop highly effective, efficient, and economic behavioral interventions that is particularly well suited to be used in this context. This project aims to address this problem by delivering an optimized app-based prevention intervention package ready for evaluation via a subsequent randomized controlled trial (RCT). The specific purpose of this project is to determine which component(s) should be included in the packaged app-based intervention Mission Wellness for US service members based on their effects on the outcomes of interest (i.e., improved knowledge, motivation, and behavior skills related to SRH and reduced HRSBs) in no more than 25 minutes of content. The components tested in the factorial CSEs include: Narratives; Skills; Scenarios; Future; and Risk. Each component has two levels: on (included) or off (not included). Main and interaction effects of components will be measured to determine the components constituting the packaged intervention.

Official Title
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Optimizing a Multi-Modal Intervention to Reduce Health-Risking Sexual Behaviors: Component Selection

Conditions
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Sexually Transmitted Infections, Pregnancy, Unplanned, Military Personnel

Intervention / Treatment
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* Behavioral: Basic Education (Education)
* Behavioral: Narrative Videos (Narratives)
* Behavioral: Skills Building Videos (Skills)
* Behavioral: Interactive Scenarios (Scenarios)
* Behavioral: Future Life Planning Tool (Future)
* Behavioral: Epidemiological Risk Scenario (Risk)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age 17 or older, currently serving as active duty in the US military, and willing to participate in all study activities if eligible and enrolled Exclusion Criteria: Does not meet eligibility criteria, unable to read, speak, or comprehend English, or unable or unwilling to give informed consent

Ages Eligible for Study
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Minimum Age: 17 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Factorial Assignment
Interventional Model Description: The MOST framework will be used. This study follows the optimization phase of the MOST framework where component selection experiments are conducted to experimentally evaluate the effectiveness of individual intervention components. Using a factorial design in this phase allows the effect of each intervention component to be evaluated and for observation of interaction effects while maximizing statistical power using a smaller sample size compared to an randomized controlled trial (RCT) powered similarly to explore individual components of an intervention. The optimization phase then allows for time and resources to be saved by ensuring only optimized components are retained after the RCT in the final intervention package.
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Education+Narratives+Skills+Scenarios+Future+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives, Skills, Scenarios, Future, and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Narratives+Skills+Scenarios+Future<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives, Skills, Scenarios, and Future | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>|
| Experimental: Education+Narratives+Skills+Scenarios+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives, Skills, Scenarios, and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Narratives+Skills+Scenarios<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives, Skills, and Scenarios | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>|
| Experimental: Education+Narratives+Skills+Future+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives, Skills, Future, and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Narratives+Skills+Future<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives, Skills, and Future | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>|
| Experimental: Education+Narratives+Skills+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives, Skills, and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Narratives+Skills<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives and Skills | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>|
| Experimental: Education+Narratives+Scenarios+Future+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives. Scenarios, Future, and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Narratives+Scenarios+Future<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives, Scenarios, and Future | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>|
| Experimental: Education+Narratives+Scenarios+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives, Scenarios, and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Narratives+Scenarios<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives and Scenarios | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>|
| Experimental: Education+Narratives+Future+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives, Future, and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Narratives+Future<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives and Future | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>|
| Experimental: Education+Narratives+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Narratives<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Narratives | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Narrative Videos (Narratives)<br>* The narrative video component is a motivation-based component that includes stories of individuals engaging in positive and negative SRH behaviors that lead to either positive or negative outcomes, respectively, in a video format.<br>|
| Experimental: Education+Skills+Scenarios+Future+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Skills, Scenarios, Future, and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Skills+Scenarios+Future<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Skills, Scenarios, and Future | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>|
| Experimental: Education+Skills+Scenarios+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Skills, Scenarios, and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Skills+Scenarios<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Skills and Scenarios | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>|
| Experimental: Education+Skills+Future+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Skills, Future, and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Skills+Future<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Skills Future | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>|
| Experimental: Education+Skills+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Skills and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Skills<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Skills | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Skills Building Videos (Skills)<br>* The skills-building videos component is a component rooted in behavioral skills that involves the provision of information on how to perform or engage positive SRH behaviors (e.g., correctly using a condom, what to expect when having a Pap smear) via instructional videos.<br>|
| Experimental: Education+Scenarios+Future+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Scenarios, Future, and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Scenarios+Future<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Scenarios and Future | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>|
| Experimental: Education+Scenarios+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Scenarios and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Scenarios<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Scenarios | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Interactive Scenarios (Scenarios)<br>* The interactive scenarios are a behavioral skills-building component that walks through conversations surrounding SRH with select individuals (e.g., partner, healthcare provider), providing suggestions on how to have these conversations and why these conversations are important to have.<br>|
| Experimental: Education+Future+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Future and Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education+Future<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Future | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Future Life Planning Tool (Future)<br>* The future life planning tool is a motivation-based component contains a series of questions to help users plan future goals to put current decision making related to SRH into perspective and provide suggestions on how to stay healthy now to be able to achieve those goals later.<br>|
| Experimental: Education+Risk<br>Participants will receive a version of the Mission Wellness app (intervention) that includes the static educational component and the following components: Risk | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>Behavioral: Epidemiological Risk Scenario (Risk)<br>* The risk component is an information- and motivation-based component with tailored epidemiological risk information about relative risk of contracting a specific STI and/or having an unintended pregnancy. Relative risk information will be determined by adjusting variables within the component (e.g., number of partners within the last month, percent of time using condoms).<br>|
| Experimental: Education<br>Participants will receive a version of the Mission Wellness app (intervention) that only includes the static educational component. | Behavioral: Basic Education (Education)<br>* All participants will receive the basic educational component in the Mission Wellness app. This component will contain text and media (e.g., images, videos) to teach basic SRH topics. The exact information in this component will be determined by an assessment of baseline SRH knowledge at the start of the intervention.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in SRH knowledge as assessed by measures of STI Knowledge | Change in SRH knowledge as assessed by STI Knowledge (Outcome 1) and Pregnancy and Birth Control Knowledge (Outcome 2). STI knowledge is measured on a dichotomous (true/false [outcome varies by item]) scale adapted from measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits and Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline, within 3 weeks post-intervention, and 30-to-90 days post-intervention | 
| Change in SRH knowledge as assessed by measures of Pregnancy and Birth Control Knowledge | Change in SRH knowledge as assessed by STI Knowledge (Outcome 1) and Pregnancy and Birth Control Knowledge (Outcome 2). Pregnancy and Birth Control is measured on a dichotomous (true/false [outcome varies by item]) scale adapted from measures used in Frost's et al (2012) Young Adults' Contraceptive Knowledge, Norms, and Attitudes: Associations with Risk of Unintended Pregnancy and Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline, within 3 weeks post-intervention, and 30-to-90 days post-intervention | 
| Change in perceived risk of having a negative SRH outcome as assessed by measures of Perceived Risk | Change in perceived risk of having a negative SRH outcome assessed by Perceived Risk on an 5-point ordinal scale (from no risk [better outcome] to very high risk [worse outcome]) adapted from measures used in Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline, within 3 weeks post-intervention, and 30-to-90 days post-intervention | 
| Change in attitudes about SRH as assessed by measures of Condom Attitudes on a likert scale | Change in attitudes about SRH assessed by the composite Condom Attitudes (Outcome 4 and Outcome 5), composite Birth Control Attitudes (Outcome 6 and Outcome 7), and Norms (Outcome 8). Condom Attitudes is a composite score of Outcome 5 and a 7-point likert scale (from strongly disagree [1] to strongly agree [7; outcome varies by item]) adapted from Crosby's et al (2008) Correct Condom Use Self-Efficacy Scale (CCUSS) and Helweg-Larson and Collins' (1994) UCLA Multidimensional Condom Attitudes Scale (MCAS). | Baseline, within 3 weeks post-intervention, and 30-to-90 days post-intervention | 
| Change in attitudes about SRH as assessed by measures of Condom Attitudes on an ordinal item | Change in attitudes about SRH assessed by the composite Condom Attitudes (Outcome 4 and Outcome 5), composite Birth Control Attitudes (Outcome 6 and Outcome 7), and Norms (Outcome 8). Condom Attitudes is a composite score of Outcome 4 and a 5-point ordinal item (from very positive [better outcome] to very negative [worse outcome]) adapted from measures used in Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline, within 3 weeks post-intervention, and 30-to-90 days post-intervention | 
| Change in attitudes about SRH as assessed by measures of Birth Control Attitudes on a likert-type scale | Change in attitudes about SRH assessed by the composite Condom Attitudes (Outcome 4 and Outcome 5), composite Birth Control Attitudes (Outcome 6 and Outcome 7), and Norms (Outcome 8). Birth Control Attitudes is a composite score of Outcome 7 and a 5-point likert-type scale (from very positive [better outcome] to very negative [worse outcome]) adapted from measures used in Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline, within 3 weeks post-intervention, and 30-to-90 days post-intervention | 
| Change in attitudes about SRH as assessed by measures of Birth Control Attitudes on a likert scale | Change in attitudes about SRH assessed by the composite Condom Attitudes (Outcome 4 and Outcome 5), composite Birth Control Attitudes (Outcome 6 and Outcome 7), and Norms (Outcome 8). Birth Control Attitudes is a composite score of Outcome 6 and a 5-point likert scale (from strongly agree [1; worse outcome] to strongly disagree [5; better outcome]) adapted from measures used in Guzza and Hayford's (2018) Adolescent Reproductive and Contraceptive Knowledge and Attitudes and Adult Contraceptive Behavior. | Baseline, within 3 weeks post-intervention, and 30-to-90 days post-intervention | 
| Change in attitudes about SRH as assessed by measures of Norms | Change in attitudes about SRH assessed by the composite Condom Attitudes (Outcome 4 and Outcome 5), composite Birth Control Attitudes (Outcome 6 and Outcome 7), and Norms (Outcome 8). Change in attitudes about SRH assessed by Norms on a 5-point likert scale (from strongly agree to strongly disagree [no better/worse outcome]) adapted from measures used in Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline, within 3 weeks post-intervention, and 30-to-90 days post-intervention | 
| Change in self-efficacy about SRH as assessed by measures of Condom/Birth Control Use | Change in self-efficacy about SRH assessed by Condom/Birth Control Use (Outcome 9) and Partner Communication/Negotiation (Outcome 10). Change in self-efficacy about SRH assessed by Condom/Birth Control Use on 5-point likert-type scales (from not at all confident [1; worse outcome] to extremely confident [5; better outcome]) adapted from Crosby's et al (2008) Correct Condom Use Self-Efficacy Scale (CCUSS) and Marin's et al (1997) Condom Self-Efficacy. | Baseline, within 3 weeks post-intervention, and 30-to-90 days post-intervention | 
| Change in self-efficacy about SRH as assessed by measures of Partner Communication/Negotiation | Change in self-efficacy about SRH assessed by Condom/Birth Control Use (Outcome 9) and Partner Communication/Negotiation (Outcome 10). Change in self-efficacy about SRH assessed by Partner Communication/Negotiation on a 4-point likert-type scale (from very difficult [1; worse outcome] to very easy [4; better outcome]) adapted from Noar's et al (2002) Condom Influence Strategy Questionnaire and Quinn-Nilas' et al (2016) Sexual Communication Self-Efficacy Scale. | Baseline, within 3 weeks post-intervention, and 30-to-90 days post-intervention | 
| Change in self-reported sexual behavior as assessed by measures of Sexual Behavior on ordinal items | Change in sexual behavior assessed by composite Sexual Behavior score (Outcomes 11-16). Sexual Behavior is a composite score of Outcomes 12-16 and ordinal (from never [worse outcome] to all the time [better outcome]) items adapted from measures used in Booth-Kewley's et al (2001) One-Year Follow-Up Evaluation of the Sexually Transmitted Disease/Human Immunodeficiency Virus Intervention Program in a Marine Corps sample. | Baseline and 30-to-90 days post-intervention | 
| Change in self-reported sexual behavior as assessed by measures of Sexual Behavior on yes/no/dont-know items | Change in sexual behavior assessed by composite Sexual Behavior score (Outcomes 11-16). Sexual Behavior is a composite score of Outcomes 11 and 13-16, and yes/no/dont-know (nominal; outcome varies by item) items adapted from measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits, Hwang's et al (2007) Sexual Behaviors After Universal Screening of Sexually Transmitted Infections in Healthy Young Women, and Booth-Kewley's et al (2001) One-Year Follow-Up Evaluation of the Sexually Transmitted Disease/Human Immunodeficiency Virus Intervention Program in a Marine Corps sample. | Baseline and 30-to-90 days post-intervention | 
| Change in self-reported sexual behavior as assessed by measures of Sexual Behavior on no/yes,previously/yes,currently items | Change in sexual behavior assessed by composite Sexual Behavior score (Outcomes 11-16). Sexual Behavior is a composite score of Outcomes 11-12 and 14-16 and no/yes,previously/yes,currently (nominal; no better/worse outcome) items adapted from measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits, Hwang's et al (2007) Sexual Behaviors After Universal Screening of Sexually Transmitted Infections in Healthy Young Women, and Booth-Kewley's et al (2001) One-Year Follow-Up Evaluation of the Sexually Transmitted Disease/Human Immunodeficiency Virus Intervention Program in a Marine Corps sample. | Baseline and 30-to-90 days post-intervention | 
| Change in self-reported sexual behavior as assessed by measures of Sexual Behavior on dichotomous items | Change in sexual behavior assessed by composite Sexual Behavior score (Outcomes 11-16). Sexual Behavior is a composite score of Outcomes 11-13 and 15-16 and dichotomous (yes/no [outcome varies by item]) items adapted from measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits, Hwang's et al (2007) Sexual Behaviors After Universal Screening of Sexually Transmitted Infections in Healthy Young Women, and Booth-Kewley's et al (2001) One-Year Follow-Up Evaluation of the Sexually Transmitted Disease/Human Immunodeficiency Virus Intervention Program in a Marine Corps sample. | Baseline and 30-to-90 days post-intervention | 
| Change in self-reported sexual behavior as assessed by measures of Sexual Behavior on open response (number input) items | Change in sexual behavior assessed by composite Sexual Behavior score (Outcomes 11-16). Sexual Behavior is a composite score of Outcomes 11-14 and 16 and open response (number input) items adapted from measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits, Hwang's et al (2007) Sexual Behaviors After Universal Screening of Sexually Transmitted Infections in Healthy Young Women, and Booth-Kewley's et al (2001) One-Year Follow-Up Evaluation of the Sexually Transmitted Disease/Human Immunodeficiency Virus Intervention Program in a Marine Corps sample. | Baseline and 30-to-90 days post-intervention | 
| Change in self-reported sexual behavior as assessed by measures of Sexual Behavior on nominal items | Change in sexual behavior assessed by composite Sexual Behavior score (Outcomes 11-16). Sexual Behavior is a composite score of Outcomes 11-15 and nominal items (main/casual other [no better/worse outcome]) adapted from measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits, Hwang's et al (2007) Sexual Behaviors After Universal Screening of Sexually Transmitted Infections in Healthy Young Women, and Booth-Kewley's et al (2001) One-Year Follow-Up Evaluation of the Sexually Transmitted Disease/Human Immunodeficiency Virus Intervention Program in a Marine Corps sample. | Baseline and 30-to-90 days post-intervention | 
| Change in self-reported sexual behavior as assessed by measures of Sexual Behavioral Intentions on ordinal items | Change in sexual behavior assessed by composite Sexual Behavioral Intentions (Outcomes 17-21). Sexual Behavior Intentions is a composite score of Outcomes 18-21 and 5-point ordinal (from never [worse outcome] to all of the time [better outcome]) items adapted from measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits, Hwang's et al (2007) Sexual Behaviors After Universal Screening of Sexually Transmitted Infections in Healthy Young Women, and Booth-Kewley's et al (2001) One-Year Follow-Up Evaluation of the Sexually Transmitted Disease/Human Immunodeficiency Virus Intervention Program in a Marine Corps sample. | Within 3 weeks post-intervention | 
| Change in self-reported sexual behavior as assessed by measures of Sexual Behavioral Intentions on yes/no/dont-know items | Change in sexual behavior assessed by composite Sexual Behavioral Intentions (Outcomes 17-21). Sexual Behavior Intentions is a composite score of Outcomes 17 and 19-21 and nominal (yes/no/dont-know [outcome varies by item]) items adapted from measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits, Hwang's et al (2007) Sexual Behaviors After Universal Screening of Sexually Transmitted Infections in Healthy Young Women, and Booth-Kewley's et al (2001) One-Year Follow-Up Evaluation of the Sexually Transmitted Disease/Human Immunodeficiency Virus Intervention Program in a Marine Corps sample. | Within 3 weeks post-intervention | 
| Change in self-reported sexual behavior as assessed by measures of Sexual Behavioral Intentions on dichotomous items | Change in sexual behavior assessed by composite Sexual Behavioral Intentions (Outcomes 17-21). Sexual Behavior Intentions is a composite score of Outcomes 17-18 and 20-21 and dichotomous (yes/no [outcome varies by item]) items adapted from measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits, Hwang's et al (2007) Sexual Behaviors After Universal Screening of Sexually Transmitted Infections in Healthy Young Women, and Booth-Kewley's et al (2001) One-Year Follow-Up Evaluation of the Sexually Transmitted Disease/Human Immunodeficiency Virus Intervention Program in a Marine Corps sample. | Within 3 weeks post-intervention | 
| Change in self-reported sexual behavior as assessed by measures of Sexual Behavioral Intentions on open response (number input) items | Change in sexual behavior assessed by composite Sexual Behavioral Intentions (Outcomes 17-21). Sexual Behavior Intentions is a composite score of Outcomes 17-19 and 21 and open response (number input) items adapted from measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits, Hwang's et al (2007) Sexual Behaviors After Universal Screening of Sexually Transmitted Infections in Healthy Young Women, and Booth-Kewley's et al (2001) One-Year Follow-Up Evaluation of the Sexually Transmitted Disease/Human Immunodeficiency Virus Intervention Program in a Marine Corps sample. | Within 3 weeks post-intervention | 
| Change in self-reported sexual behavior as assessed by measures of Sexual Behavioral Intentions | Change in sexual behavior assessed by composite Sexual Behavioral Intentions (Outcomes 17-21). Sexual Behavior Intentions is a composite score of Outcomes 17-20 and a 7-point likert-type (from definitely [better outcome] to not likely at all [worse outcome]) scale adapted from measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits, Hwang's et al (2007) Sexual Behaviors After Universal Screening of Sexually Transmitted Infections in Healthy Young Women, and Booth-Kewley's et al (2001) One-Year Follow-Up Evaluation of the Sexually Transmitted Disease/Human Immunodeficiency Virus Intervention Program in a Marine Corps sample. | Within 3 weeks post-intervention | 
| Quality and satisfaction of healthcare experiences as assessed by measures of Health Care on ordinal items (from very helpful to not helpful at all) | Quality and satisfaction of healthcare experiences assessed by composite Health Care (Outcomes 22-27). Health Care is a composite score of Outcomes 23-27 and on 5-point ordinal or likert-type (from very helpful [better outcome] to not helpful at all [worse outcome]) items adapted from measures used in Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline and 30-to-90 days post-intervention | 
| Quality and satisfaction of healthcare experiences as assessed by measures of Health Care on ordinal items (from strongly agree to strongly disagree) | Quality and satisfaction of healthcare experiences assessed by composite Health Care (Outcomes 22-27). Health Care is a composite score of Outcomes 22 and 24-27 and on 5-point ordinal or likert-type (from strongly agree [better outcome] to strongly disagree [worse outcome]) items adapted from measures used in Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline and 30-to-90 days post-intervention | 
| Quality and satisfaction of healthcare experiences as assessed by measures of Health Care on ordinal items (from to much to some to little) | Quality and satisfaction of healthcare experiences assessed by composite Health Care (Outcomes 22-27). Health Care is a composite score of Outcomes 22-23 and 25-27 and on 5-point ordinal or likert-type (from too much to some too little [no better/worse outcome]) items adapted from measures used in Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline and 30-to-90 days post-intervention | 
| Quality and satisfaction of healthcare experiences as assessed by measures of Health Care on yes/no/dont-know nominal items | Quality and satisfaction of healthcare experiences assessed by composite Health Care (Outcomes 22-27). Health Care is a composite score of Outcomes 22-24 and 26-27 and yes/no/dont-know (no better/worse outcome) items adapted from measures used in Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline and 30-to-90 days post-intervention | 
| Quality and satisfaction of healthcare experiences as assessed by measures of Health Care on no/yes,recent/yes,not-recent nominal items | Quality and satisfaction of healthcare experiences assessed by composite Health Care (Outcomes 22-27). Health Care is a composite score of Outcomes 22-25 and 27 and no/yes,recent/yes,not-recent (no better/worse outcome) nominal items adapted from measures used in Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline and 30-to-90 days post-intervention | 
| Quality and satisfaction of healthcare experiences as assessed by measures of Health Care on a cumulative scale | Quality and satisfaction of healthcare experiences assessed by composite Health Care (Outcomes 22-27). Health Care is a composite score of Outcomes 22 and 24-26 and a cumulative (outcome varies by item) scales adapted from measures used in Gold's (1997) CD-ROM Technology to Increase Appropriate Self-Care and Preventive Behaviors among Army and Navy Women. | Baseline and 30-to-90 days post-intervention | 
| Quality and satisfaction of healthcare provider interactions as assessed by measures of Patient-Provider Communication | Quality and satisfaction of healthcare provider interactions as assessed by Patient-Provider Communication on a 5-point likert-type scale (from I do not agree [worse outcome] to I fully agree [better outcome]) adapted from Bieber's et al (2010) Questionnaire on the Quality of Physician-Patient Interaction (QQPPI) | Baseline | 
| Change in self-reported mental health as assessed by Depression (PHQ-2) | Change in mental health assessed by Depression on the Patient Health Questionnaire-2 (PHQ-2) (from not at all [better outcome] to nearly every day [worse outcome]) | Baseline and 30-to-90 days post-intervention | 
| Change in self-reported mental health as assessed by Anxiety (HAI) | Change in mental health assessed by the Anxiety on the Health Anxiety Inventory (HAI) | Baseline and 30-to-90 days post-intervention | 
| Intervention acceptability as assessed by measures on Acceptability | Acceptability of the intervention assessed by composite measures on Acceptability (Outcomes 31-33). Acceptability is a composite score of Outcome 32-33 and a 5-point ordinal or likert-type scale (from do not agree at all [worse outcome] to agree completely [better outcome]) adapted from Stoyanov's et al (2015) Mobile App Rating Scale and measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits and Kelley's et al (2005) An Evaluation of a Sexual Assault Prevention and Advocacy Program for US Navy Personnel. | Within 3 weeks post-intervention | 
| Intervention acceptability as assessed by measures on Acceptability as open-ended items | Acceptability of the intervention assessed by composite measures on Acceptability (Outcomes 31-33). Acceptability is a composite score of Outcome 31 and 33 and open-ended items adapted from Stoyanov's et al (2015) Mobile App Rating Scale and measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits and Kelley's et al (2005) An Evaluation of a Sexual Assault Prevention and Advocacy Program for US Navy Personnel. | Within 3 weeks post-intervention | 
| Intervention acceptability as assessed by measures on Acceptability on a rating scale | Acceptability of the intervention assessed by composite measures on Acceptability (Outcomes 31-33). Acceptability is a composite score of Outcome 31-32 and a rating scale (from 1 [not at all likely; worse outcome] to 10 [extremely likely; better outcome]) adapted from Stoyanov's et al (2015) Mobile App Rating Scale and measures used in Acari's et al (2004) Feasibility and Short-Term Impact of Linked Education and Urine Screening Interventions for Chlamydia and Gonorrhea in Male Army Recruits and Kelley's et al (2005) An Evaluation of a Sexual Assault Prevention and Advocacy Program for US Navy Personnel. | Within 3 weeks post-intervention | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Women's Health, Sexual and Reproductive Health, Military, Multiphase Optimization Strategy