Social and Behavioral Sciences Commons^™

Twitter Posts, Gist, And The Perceived Harmfulness Of The Human Papillomavirus Vaccine, Candice Fawn Coffman

Open Access Theses & Dissertations

Individuals frequently encounter two types of information when evaluating the risk of a vaccination: statistical evidence describing the frequency of positive and negative outcomes, and anecdotal evidence describing positive and negative personal experiences. The present study evaluated the relative importance of both types of evidence when considered simultaneously. We predicted that the presentation of even one negative anecdote would have an effect on the key risk information (the â??gistâ??) that subjects extracted from the statistical and anecdotal data. Self-generated twitter posts (tweets) and standard measures of perceived risk were used to test the latter prediction. The current findings partially supported …