Tsuchiya, Takahiro, and Yoko Hirai. “Elaborate Item Count Questioning: Why Do People Underreport in Item Count Responses?”. Survey Research Methods 4, no. 3 (December 31, 2010): 139–149. Accessed April 25, 2024. https://ojs.ub.uni-konstanz.de/srm/article/view/4620.