We believe clinical evaluation of interview behavior has reached a plateau and propose a new method for enhancing the sensitivity of observational procedures.
Although of obvious value as a permanent record of interview behavior, video methodology has been difficult to harness. A method is described, based on advances in the development of standard rating schedules, designed to increase reliability of ratings, to emphasize the measurement of nonverbal, expressive aspects of behavior, and to enhance the capacity of observers in the exercise of clinical judgment. Its sensitivity was tested by comparing it with a conventional rating procedure in a clinical trial, involving the use of two drugs with different chemical structures but presumed to have similar actions. The video method showed increased sensitivity in detecting systemic and important differences in behavioral effects between the agents.
Katz MM, Itil TM. Video Methodology for Research in Psychopathology and Psychopharmacology: Rationale and Application. Arch Gen Psychiatry. 1974;31(2):204–210. doi:10.1001/archpsyc.1974.01760140056009
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