The purpose of this study was to revalidate an existing measure of knowledge, attitudes, and use of evidence-based practice (EBP) developed for medical students. Adapted to reflect social work, questionnaires were obtained from undergraduate and graduate social work students ("n"?=?134) and field instructors ("n"?=?50). All 4 factors (21 items) related to EBP (knowledge, attitude, personal use, and future use) showed good reliability, and overall reliability was 0.86. MSW students rated their knowledge and use of EBP significantly higher than BSW students and field instructors did, but the groups were similar on attitudes and future use of EBP. The Knowledge, Attitudes, Behavior Scale questionnaire is a useful tool for social work programs that can be used to monitor the impact of EBP curricular efforts. (Contains 4 tables.)