This OSF page contains the data, syntax, stimuli, and pre-registration files for the paper entitled, "Reminder Avoidance: Why People Hesitate to Disclose Their Insecurities to Friends," accepted for publication in the Journal of Personality and Social Psychology in 2020. Abstract: People seek and receive support from friends through self-disclosure. However, when self-disclosures reveal one’s personal insecurities, do people rely on friends as an audience as they normally do? This research demonstrates that they do not. Five pre-registered studies show that disclosers exhibit a weaker preference for friends as an audience when disclosures involve revealing personal insecurities than when they involve revealing other neutral or negative personal information. This effect is observed despite that the only alternative audience available to disclosers in these studies is a stranger. We theorize that such an effect occurs because disclosers anticipate stronger pain associated with being reminded of disclosed contents when their disclosures involve personal insecurities than other types of information and, thus, wish to avoid such reminders from happening. Our findings support this theorizing: (1) Disclosers’ weaker preference for friends as an audience for insecurity-provoking (vs. non-insecurity-provoking) disclosure is mediated by how painful they anticipate reminders of disclosed contents to be and (2) disclosers’ preference for a particular audience is diminished when their perceived likelihood of disclosed-content reminders associated with that audience is enhanced. An additional exploratory content-analysis study shows that when people disclose their personal insecurities, they disclose less and are less intimate in what they disclose when imagining a friend (vs. a stranger) as an audience. Altogether, disclosers are, ironically, found to open up less to friends about their insecurities—self-aspects that may particularly benefit from friends’ support—than about other topics, due to their avoidance of potentially painful disclosed-content reminders.