The purpose of this study was to investigate the comparibility of counselor effectiveness ratings made by four different groups. This study examined the relationships among student counselors' self-ratings, peer ratings, supervisor ratings, and client ratings on the Counselor Effectiveness Scale, Form 2, a semantic differential rating scale appropriate for immediate use with raters of varying sophistication. No significant relationships were found between pairs of rating groups on the total score of the CES. In addition, no significant difference was found among the mean ratings made by the four rating groups. Implications for counselor effectiveness research and counslor training are discussed. (Author)