The results obtained in a series of investigations with locus of control used as an independent variable provide evidence in support of the results obtained from situationally contrived studies of perceived control. The impact of stressors seems to be diminished in situations in which participants can exercise some degree of control. Likewise, persons assessed as holding internal control expectancies seem to be better able to withstand the assult of stressors than externals. Fatalistic persons seem to have less recourse to cognitions that can lessen the impact of stressful events. (Author)