Theoretical models of individual motivation in groups represent overt effort intentions as precursors of observable effort expenditure in a group context. We examined established triggers of group motivation gains in a scenario-based paradigm, exploring which of these triggers are already manifested at the level of effort intentions. We expected higher effort intentions during teamwork as compared with individual work when teamwork enabled one of the following processes: social compensation, social comparison, or social indispensability. Fifty-seven basketball players (Study 1) and 97 adolescents (Study 2) were asked to imagine individual and team sports situations and to indicate their intended effort in these situations. Features of the team situations were manipulated following a 2 (task demands: conjunctive vs. additive) × 4 (partner performance: inferior, equally strong, moderately superior, very superior) design. Results showed that social compensation, social comparison, and social indispensability were already at work at the level of overt effort intentions.

First evaluation results of the training ZAZO document the positive effect on both work motivation and subjective prognosis of the ability to work. The results of the evaluation present the good acceptance of the participants (93.3% = rather content to very content). The implementation of the group intervention in existing programs of rehabilitation can benefit job-related reintegration and will thereby contribute to lower costs for pension regulatory authorities in the long run.