Disease Threat from Ex-Bisexual Partners
Creators: name: Moran, James
name: Murray, Damian
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: This is a follow-up study of Study 1A and 1B of this registration. In study 1A, we had participants find out that their partner dated someone who was bisexual. In study 1B, we changed the vignette to state that their partner reveals to them that they are bisexual. In this pre-registration we will randomize participants to be either in a condition where their partner reveals they are bisexual, or that their ex is bisexual. Hypotheses Men will score higher on negative feelings and safe sex measures when they are in the condition where their partner reveals their ex was bisexual. Women will score higher on negative feelings safe sex measures when they are in the condition where their partner reveals they are bisexual. Study design 1. Participants will be undergraduate men and women at Tulane University who are participants in a department-wide online study. 2. Participants will first be given informed consent. 3. They will then answer brief questions about their gender, orientation, and previous sexual history. 4. They will be randomized to be in the following vignettes. The first vignette describes that their partner revealed to them that they are bisexual, and the other vignette revealed to them that their last sexual partner was bi and had sex with someone of the same gender. 5. They will then be asked to report their level of upset, regret, disgust, if their partner got STI test if they want their partner to be tested, if they would get tested, and if they would use a condom. These measures were used in the previous two studies and are highly correlated. Thus we will create two mean composites. 1. The first mean composite called Negative Feelings will be a mean of upset, regret, disgust. 2. The second mean composite called safe sex practices will be compromised of the means from: if their partner got STI test if they want their partner to be tested, if they would get tested, and if they would use a condom 3. They will then take the Perceived Vulnerability to Disease Questionnaire (Duncan, Schaller, &amp; Park, 2009), and the Sociosexuality Orientation Inventory (Penke &amp; Asendorpf, 2008). 4. They will then answer a demographic questionnaire and will be debriefed. Data collection procedures Data collection will be conducted via an online survey using Qualtrics. The participants at Tulane can access the survey from the online research platform known as SONA. Sample size 200-250 participants from Tulane. Based on G*Power, we will need 155 participants to detect a medium effect of f2 =.625, and to have the power of .8. We will collect more based on exclusion criterias (e.g., failing the manipulation check). Measured variables Dependent Variables Created by the research team from Study 1A and B, but they are now used as 2 mean composites. The three IVs that are exploratory will be used as a mean composite (e.g. PI, GA, and SOI) Statistical models: A 2 (condition) x 2 (gender) MANOVA will be used with Bonferroni post hocs. Transformations: If data is not normally distributed, they will be winsorized. We will center the 3 scales that will be used in our exploratory analysis. Inference criteria: To infer statistical significance, we will use p&lt; .05. Data exclusion: If participants miss three or more of the DV’s, they will not be included in the study. If data points are 3 SD above or below, they will be winsorized. Furthermore, if the participants do not identify as a man or woman, they will not be used in our data analysis. Missing data: If participants miss two or less, the mean for the item will be inputted for that individual. Exploratory analysis: We will conduct a Moderation using Mean level Perceived Infectability, and Germ Aversion to measure how disgusted the participants will feel.