Desire for control and optimistic time predictions.

Few studies have investigated individual differences in time predictions. We report two experiments that show an interaction between the personality trait Desirability of Control and reward conditions on predictions of performance time. When motivated to perform a task quickly, participants with a strong desire for control produced more optimistic predictions than those with a weaker desire for control. This effect could also be observed for a completely uncontrollable task. The results are discussed in relation to the finding that power produces more optimistic predictions, and extend this work by ruling out some previously suggested explanations.