摘要：Single subject research (SSR) can complement findings from aggregated group data and contribute uniquely toward the goal of generating and generalizing scientific knowledge in psychology. Â The present study illustrates these assertions with psychotherapy case formulation research. Â In earlier work my team and I identified and operationalized multiple dimensions of quality in case formulations. Â These include comprehensiveness, formulation elaboration, precision of language, complexity, coherence, treatment plan elaboration, goodness-of-fit between the treatment plan and the rest of the case formulation, and systematic process in following an a priori conceptual scheme. Using these dimensions, we found that cognitive-behavioral and psychodynamic experts generated higher quality case formulations than novice and experienced therapists. Â Experts also generated more ideas in their formulations and reasoned more inductively than deductively. Â In the present study, we explore these results further by qualitatively examining the highest quality psychodynamic and cognitive-behavioral formulations on the most difficult patient material, and then compare these two formulations with the two falling nearest to the 25 th percentile range in quality ratings. Â Our goals were to investigate expert reasoning processes in case formulation more closely and to illustrate how aggregated group data and single subject research can mutually inform each other. Â We close by suggesting characteristics of a practical measure of case formulation expertise that may facilitate further investigations.
关键词：case formulation, case studies, single subject research, cognitive-behavioral formulation, psychodynamic formulation, formal coding systems
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