Online Study of Colorectal Cancer and Prostate Cancer Screening Decision Making

Study Overview
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Brief Summary
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Participants will be recruited from the United States and Australia to take an online survey about colon cancer screening or prostate cancer screening. Individuals selected for both the prostate cancer survey and the colon cancer study will be randomized to take one of three survey types - balance sheet, rating and ranking or conjoint analysis. These surveys will help participants clarify their values and opinions about screening options for colon cancer or prostate cancer. Participants' responses to the online survey are measured at one point in time - the time at which the participant takes the survey.

Detailed Description
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This study will compare effect of a conjoint analysis based values clarification exercise, ranking and rating, and a balance sheet on screening test preferences for colorectal cancer screening and prostate cancer screening using online surveys. Recruitment will be conducted through Survey Sampling International (SSI), an online survey research firm. Participants will be randomized to one of three arms to take online surveys. Patients will complete either a conjoint analysis task, in which they will be asked to make a series of choices between hypothetical screening testing strategies with different attributes; a rating and ranking task for these same attributes; or they will make a choice after viewing a balance sheet of attributes.

Official Title
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A Comparison of the Effect of a Conjoint Analysis Based Values Clarification Exercise, Rating and Ranking Exercise, and Balance Sheet for Colorectal Cancer Screening and Prostate Cancer Screening Decision Making

Conditions
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Colorectal Cancer, Colon Cancer, Prostate Cancer

Intervention / Treatment
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* Other: Rating and Ranking Task
* Other: Discrete Choice Task
* Other: Balance Sheet Task


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Colorectal cancer men and women, ages 50-75, who can speak and read English. Prostate cancer screening men, ages 50-75, who can speak and read English. Exclusion Criteria: Colorectal Cancer individuals with a previous personal or family history of colon cancer, personal history of polyps, or inflammatory bowel disease will be excluded. Prostate cancer individuals with a previous personal or family history of prostate cancer will be excluded

Ages Eligible for Study
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Minimum Age: 50 Years
Maximum Age: 75 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: Health Services Research
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Rating and Ranking Group<br>A group of individuals from the United States and Australia who complete a rating and ranking task. | Other: Rating and Ranking Task<br>* Individuals who are randomized to the rating and raking arm will be asked to complete an informational task in a rating and ranking format. The task will help individuals clarify their opinions and preferences regarding colon cancer and prostate cancer screening.<br>|
| Other: Discrete Choice Group<br>A group of individuals from the United States and Australia who complete a discrete choice experiment task. | Other: Discrete Choice Task<br>* Individuals who are randomized to the rating and raking arm will be asked to complete an informational task in a discrete choice format. The task will help individuals clarify their opinions and preferences regarding colon cancer and prostate cancer screening.<br>|
| Other: Balance Sheet Group<br>Individuals from the United States and Australia who will complete an implicit values clarification task | Other: Balance Sheet Task<br>* Individuals who are randomized to the rating and raking arm will be asked to complete an informational task in a balance sheet format. The task will help individuals clarify their opinions and preferences regarding colon cancer and prostate cancer screening.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Participant-reported most important attribute from survey | The single most important colon cancer or prostate cancer screening attribute indicated by the participant surveys. Each participant will be randomly assigned to take one of three survey versions: either (1) a conjoint analysis task wherein they will be asked to make a series of choices between hypothetical screening testing strategies with different attributes; (2) a rating and ranking task for these same attributes; or (3) they will make a choice after viewing a balance sheet of attributes. | 1 day | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Participant-reported intent to undergo screening from survey | the number of participants who state they plan to be screened for condition | 1 day | 
| Unlabeled screening test options | choice on a single question among unlabeled screening test options | 1 day | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Colon, Prostate, Cancer