Attrition from Web-Based Cognitive Testing: A Repeated Measures Comparison of Gamification Techniques

Jim Lumsden   ^{1, 2} , MSc ;   Andy Skinner   ^{1, 2} , PhD. ;   David Coyle   ³ , PhD ;   Natalia Lawrence   ⁴ , PhD ;   Marcus Munafo   ^{1, 2} , PhD

¹ UK Centre for Tobacco and Alcohol Studies, School of Experimental Psychology, University of Bristol, Bristol, United Kingdom

² The MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, United Kingdom

³ School of Computer Science, University College Dublin, Dublin, Ireland

⁴ School of Psychology, College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom