Hermeneutic single-case efficacy design

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In this article, I outline hermeneutic single-case efficacy design (HSCED), an interpretive approach to evaluating treatment causality in single therapy cases. This approach uses a mixture of quantitative and qualitative methods to create a network of evidence that first identifies direct demonstrations of causal links between therapy process and outcome and then evaluates plausible nontherapy explanations for apparent change in therapy. I illustrate the method with data from a depressed client who presented with unresolved loss and anger issues.
Original languageEnglish
Pages (from-to)1-21
Number of pages21
JournalPsychotherapy Research
Issue number1
Publication statusPublished - Mar 2002


  • hermeneutic single-case efficacy design
  • therapy
  • therapy process
  • psychotherapy
  • social psychology


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