Semantic fluency including task switching predicts academic success in medical school.

Objectives The future state treaty on the admission of students to German medical schools calls for a variety of selection criteria among which at least two are required to be independent of school leaving grades. Against this background, the present study investigated achievement motivation and executive functions as predictors of academic success in medical school. Material and methods Second year medical students were assessed for executive functioning by using the Tower of London Test (ToL), a German version of the Controlled Oral Word Association Test (COWAT), the Trail Making Test (TMT-A) and for motivation by using the Achievement Motivation Inventory (AMI). Academic success was evaluated twofold, i) whether the first state exam (M1) was passed at the earliest possible, after completion of the second year and ii) via the grades obtained. Results 81 out of 226 students enrolled participated in our study. Passing the M1 was best explained by semantic fluency including task switching. Moreover, academically successful students achieved significantly higher levels in the AMI-facets "compensatory effort" and "engagement". All students scored above average in the TMT-A and average in the ToL. Conclusion Alternating semantic fluency—requiring simultaneously inhibition, updating and task shifting—turned out highly predictive of academic success in medical school. Moreover, higher levels in "compensatory effort" and “engagement” suggested that both, increased energy expenditure as response to fear of failure and elevated readiness to exert effort also impacted positively on success.