Therapist training efforts have been assessed using several outcomes. A model for evaluating therapist training in empirically supported treatments is presented, adapted from Kirkpatrick's (in: Craig and Bittel (eds.) Training and development handbook, 1967) training evaluation model. The adapted framework includes short-term outcomes, such as reactions to training and changes in attitude, knowledge, or skills, and longer-term outcomes, such as changes in therapist behavior in practice or client outcomes. Evaluation methods for these outcomes are reviewed, with information on their validity, reliability, and feasibility. An agenda for further research to improve therapist training evaluation is presented, with discussion of how evaluation can inform other areas of the field.