Objectives: To evaluate an objective structured clinical examination (OSCE) adapted for social work in a lab course and examine the degree to which it predicts competence in the practicum. Method: 125 Masters students participated in a one-scenario OSCE and wrote responses to standardized reflection questions. OSCE performance and reflections were rated on previously standardized scales, competence in field was evaluated using the online practice-based evaluation. Results: A wide range of scores on OSCE scales indicate that differences in student competencies were captured. Correlational analyses revealed an association between OSCE scales and field final evaluations. Nevertheless, a number of students who performed poorly on the OSCE did well in the practicum. Conclusions: The OSCE method of evaluation warrants cautious optimism and requires further replication and adaptation for social work educational outcomes assessment. (Contains 2 tables and 4 figures.)