Thematic Mapping Maps Much Territory But Needs Stronger Evidence‐based Coordinates: A Commentary

Thematic mapping (TM) is a transtheoretical, transdiagnostic, pattern‐focused method of case formulation. It involves systematically gathering a broad range relevant client information, collecting representative behavioral episodes, using inductive and deductive reasoning to identify themes and subthemes that characterize a client's dysfunctional patterns, and then developing a treatment plan to address them. The TM method includes debiasing steps to minimize clinician judgment errors and addresses a client's cultural context. TM was developed in response to several "case misconceptualizations" that the authors contend have created a crisis in the field of case conceptualization. This commentary critiques the case misconceptualizations and the TM method is evaluated. Acknowledging multiple innovations of TM, the commentary recommends a stronger evidence‐based focus, and discusses the benefits of theory‐guided case formulation, reasons to consider diagnosis in case formulation, and research as a means to resolve case misconceptualizations.