<p dir="ltr">This dataset was compiled through a computer-based quasi-experimental study in lab settings in the USA and South Korea. Participants were US (n=105) and South Korean (n=109) undergraduate students who completed 5 rounds of the Wisconsin Cart Sorting task (with 25 trials in each round) and then received social- and temporal-comparative feedback that they viewed by hovering their computer mouse over the feedback type label. Relative attention to social- vs. temporal-comparative feedback was operationalized as the ratio of time spent attending to social-comparative feedback over total time spent attending to both types of comparative feedback. After receiving comparative feedback for each round, the participants assessed their own performance on visual analogue scales of 0 to 100 (higher scores indicating better performance). Finally, demographic data and data on self-construals (measured as an index of two separate types of self-construal scales) was collected. The file includes several tabs, including a tab that presents R code and results. This data was collected for one study, among 3, that form the empirical section of a PhD thesis submitted to UCL's IOE (Department of Psychology and Human Development).</p>