Nicolaas, Gerry, Pamela Campanelli, Steven Hope, Annette Jäckle, and Peter Lynn. “Revisiting "yes No" Versus ‘check All That apply’: Results from a Mixed Modes Experiment”. Survey Research Methods 9, no. 3 (December 4, 2015): 189–204. Accessed December 21, 2024. https://ojs.ub.uni-konstanz.de/srm/article/view/6151.