Effects of goal difficulty, self-set goals, and monetary rewards on dual task performance

Abstract

The present study tests the effects of goal difficulty, goal origin (self-set vs assigned), and monetary rewards (present vs absent) on the simultaneous performance of two tasks (dual-task paradigm). Participants were 32 students working simultaneously on a computerized task of letter typing with the right hand and digit classification with the left hand. A 2 (self-set vs assigned goals) × 2 (present vs absent contingent monetary rewards) × 3 (easy, moderate, and difficult goals) factorial design with goal difficulty as the repeated factor was employed. Each task element was performed under easy, moderate, and difficult goals, which appeared in six consecutive trials of varied order within each experimental condition. Results indicate that self-set goals without monetary rewards led to the highest performance levels, whereas the combination of self-set goals and monetary rewards was detrimental to performance. These findings occurred (except in one case) only when goals were of either moderate Or high difficulty.