There is a clear call in group counseling practice and training for evidence-based practice (ACA, 2005; ASGW, 2008; CACREP, 2009). At the same time, group counselors also are asked to keep clients\u27 experience at the center of their work (ASGW, 2012). This article outlines the authors\u27 effort to develop and study an instrument designed to measure group counselors\u27 conceptualization skill using group members\u27 subjective perceptions as a foundation. Descriptions of the instrument\u27s internal reliability, construct validity, and generalizability will be presented, as well as suggestions for conducting research on this instrument in future studies
