Objective: To test the original factor structure of the Theoretical Evaluation Self Test (TEST) and to assess alternate factor structures. TEST includes the major psychotherapy theories (cognitive-behavioral, family, humanistic, and psychodynamic), ecosystemic and pragmatic approaches, and a cultural competency orientation. Method: Composing the replication sample are 146 MSW students and 32 practicing clinicians. Some analyses also include a previously collected sample (n = 130). Results: Five of the six original subscales are replicated by exploratory factor analysis and by assessing factor congruence. A four-factor solution is a better fit in confirmatory factor analysis. Conclusions: The six-factor solution, with its traditional theoretical divisions, is recommended for use as a self-scoring educational tool. However, the statistically stronger four-factor solution is preferable for research applications. (Contains 1 figure and 2 tables.)