Using frame-of-reference training to understand the implications of rater idiosyncrasy for rating accuracy

Frame-of-reference (FOR) rater training is one technique used to impart a theory of work performance to raters. In this study, the authors explored how raters' implicit performance theories may differ from a normative performance theory taught during training. The authors examined how raters' level and type of idiosyncrasy predicts their rating accuracy and found that rater idiosyncrasy negatively predicts rating accuracy. Moreover, although FOR training may improve rating accuracy even for trainees with lower performance theory idiosyncrasy, it may be more effective in improving errors of omission than commission. The discussion focuses on the roles of idiosyncrasy in FOR training and the implications of this research for future FOR research and practice.