Volunteer Bias in Sex Research: The effect of recruitment material on demographics, personality, impression management, sociosexuality, sexual desire and preoccupation
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The study investigated volunteer bias in sex research across different measures in an online anonymous environment. 108 participants (79 female, 29 male) participated, completing one of two versions. Version A participants were recruited to a personality and sexual research study. Version B participants were recruited to a personality study then asked to continue to a sexual research study. Condition significantly impacted age but the effect was small. Condition did not affect sexual behaviour or attitudes. Many more participants volunteered for version B than A, and this was especially true of non-students. Anonymous questionnaires discussing sex experience limited volunteer bias. Recruitment might be boosted using this method. Future research questions include whether findings apply to non-students or invasive measures.