While supervisory research focuses on trainee performance in counseling situations as the primary outcome criterion, few instruments have been developed for evaluating behavior in the supervision interview. To develop a scale that reflects critical factors in the supervisory relationship, the Supervisor Personal Reaction Scale (SPRS) and the Trainee Personal Reaction Scale (TPRS) were factor analyzed using 140 and 141 questionnaires, respectively. The results indicated that for both the SPRS and TPRS, 12 items of the original 32-item questionnaires defined three relatively independent factors. Since the items within each factor for both the SPRS and TPRS were conceptually parallel, the three subscales were labelled in the same way for each scale. The subscales, each with four items apiece, were labelled Evaluation of Other, Evaluation of Self, and Level of Comfort. The new 12-item questionnaires were named the SPRS-Revised (SPRS-R) and the TPRS-Revised (TPRS-R). The new scales provide useful measures for research and for the training of supervisors. (Author/JAC)