Two experiments, involving 436 preadolescent schoolchildren, investigated how the
explicitness of promised reward affects creativity. In the first study, the nonspecific
promise of reward increased the creativity of picture drawing if children had previously
received divergent-thinking training (generating novel uses for physical objects).
In the second study, promised reward increased the creativity of children's drawings
if current task instructions clarified the necessity of creative performance. Promised
reward evidently increases creativity if there is currently, or was previously, an
explicit positive relationship between creativity and reward.