Previous research has shown that individuals have a tendency to prefer things and people related to themselves. I conducted a lab experiment to replicate previous findings in that individuals who believed they shared a similarity with someone would be more likely to comply with a request from that person, as well as show more feelings of liking towards that person. Additionally, the study sought to investigate if sharing a positively-valenced or negatively-valenced similarity with the requestor would affect the likelihood of individuals to comply with the request and the amount of liking felt towards the requestor. Although the manipulations of similarity and valence were found to be successful, no hypothesized differences in rates of compliance or liking were found.
Van Gelder, Hayley, "Birds of a Feather: The Effect of Negatively and Positively Valenced Similarities on Compliance" (2014). Honors Theses. 58.