This study assesses the interrater reliability of the revised Advanced Psychodiagnostic Interpretation (API) scoring system for the Bender Gestalt Test (BGT). The API scoring system identifies 207 possible distortions in a BGT protocol. Agreement across nine raters exceeded 90% for each of three clinical protocols. Kappa statistics indicated that the API system exhibited good interrater reliability. Further research is necessary in such areas as test-retest reliability and validity to further demonstrate the effectiveness of the procedure.
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