Paskuda, MalteLewkowicz, MyriamAvram, GabrielaDe Cindio, FiorellaPipek, Volkmar2019-04-042019-04-042015978-1-4503-3460-0This article presents a study that investigates how anonymity influences user participation in an online question-and-answer platform (Quora). The study is one step in identifying hypotheses that can be used to address a research and design issue concerning the role of anonymity in online participation, particularly among older informal caregivers. We present here a model that describes the factors that influence participation, which we based on the literature. These factors were used when analyzing the answers to questions in the health category on Quora. The results of this study complement an earlier study that we conducted on YouTube comments. On Quora, there was only one significant difference between anonymous and non-anonymous answers: with anonymous answers, social appreciation correlated with the answer's length.enQuoraanonymitysocial supportText/Conference Paper10.1145/2768545.2768551