“…Several studies have considered outside options as additional features to the design of the tasks. For example, subjects have been provided with the option to leave the laboratory early (e.g., Dickinson, 1999;Rosaz, Slonim, and Villeval, 2016), browse newspapers or magazines (e.g., Charness, Masclet, and Villeval, 2014;Rey-Biel, Sheremeta, and Uler, 2017), surf the Internet (e.g., Kessler and Norton, 2016), watch preselected popular YouTube videos (e.g., Hayashi, Nakamura, and Gamage, 2013), press a paid timeout button (e.g., Mohnen, Pokorny, and Sliwka, 2008;Blumkin, Ruffle, and Ganun, 2012), or participate in an alternative activity (e.g., van Dijk, Sonnemans, and van Winden, 2001). 6…”