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How reliable are case formulations? A systematic literature review
Lucinda Flinn1,2, Louise Braham1,2, Roshan das Nair1,3,4
1Trent Doctorate in Clinical Psychology, Division of Psychiatry and Applied Psychology, University of Nottingham, UK.
The reliability of case formulations varies across different theoretical approaches, but can be enhanced with training and experience. Further research is needed to confirm these findings on case formulation reliability.
Area of Science:
- Psychology
- Clinical Psychology
- Psychotherapy Research
Background:
- Case formulation is a cornerstone of clinical psychology practice.
- Assessing the reliability of case formulations is crucial for ensuring consistent and dependable clinical reasoning.
- Existing literature on the reliability of case formulations across different theoretical orientations requires systematic synthesis.
Purpose of the Study:
- To systematically review the inter-rater and test-retest reliability of case formulations.
- To examine the reliability of case formulations across various theoretical modalities.
- To evaluate the methodological quality of primary research studies on case formulation reliability.
Main Methods:
- A systematic literature search was conducted across five electronic databases.
- Reference list trawling was employed to identify additional relevant studies.
- A bespoke methodological quality assessment tool was developed and utilized for study evaluation.
Main Results:
- Inter-rater reliability for case formulations generally ranged from slight to substantial.
- Training and increased clinical experience were associated with improved agreement in case formulations.
- Psychodynamic formulations showed slightly higher reliability than cognitive or behavioral formulations, though methodological considerations were noted.
Conclusions:
- The reliability of case formulations is variable but improvable across different theoretical approaches.
- Training and clinical experience are key factors in enhancing case formulation reliability.
- Further research is necessary to solidify conclusions regarding case formulation reliability.
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