A review of the published research on Byrne's repression-sensitization dimension reveals a widespread neglect of three important issues: (a) procedural problems including limited subject sampling, extreme variance in distribution statistics, and unstandardized methods of subject classification; (6) sex differences; and (c) the use of intermediate-scoring subjects. These problems are discussed with pertinent illustrations from the research literature. The following recommendations for future research are presented: (a) Standardized procedures are essential to facilitate valid comparisons across studies; (6) sex differences should be systematically investigated as a matter of standard procedure; and (c) the intermediate range of scorers should be included in all repression-sensitization research.