ABSTBACTThe effectiveness of causal projection and similarity projection in controlKng stress associated with threat to self-esteem was investigated. To induce threat to self-esteem, half of the subjects were told that they had done poorly on an important achievement test while the remaining subjects were not told that they had done poorly. The projection strategies were manipulated by encouraging subjects to attribute the cause of their poor performance to the examiner instead of to themselves (caiisal projection) or to estimate how poorly their friends would have scored on the test had they taken it and not performed well on it (similarity projection). Measures of subjective anxiety, depression, and anger indicated that (a) the testing situation and negative feedback were effective in increasing stress, (b) causal projection was effective in controlling stress, and (c) similarity projection was partially effective in controlling stress. The results provide evidence that causal projection can be effective in controlling stress and also have implications concerning the conditions under which the use of projection will and will not be effective for coping with stress. The importance that situational factors may have on the effectiveness of cognitive coping strategies was emphasized.Although most of the attention directed toward the concept of projection has focused on its value in personality theory and assessment, traditionally projection has been conceived of as a defensive maneuver. The theoretical underpinnings of this defensive or stress-reducing use of projection date back to Freud (1956, originally published 1896) who suggested that unacceptable personality characteristics and/or the cause of these characteristics are projected outward and "in this way recognition of the 1. The authors wish to thank David S. Holmes for his constructive comments on an earlier draft of the manuscript. Requests for reprints should be addressed to Thomas G. Burish, Department of Psychology, Vanderbilt University, Nashville, Tennessee 37240.