Despite decades of refinement to diagnostic manuals, questions persist about the consistency and scientific basis of psychiatric diagnosis. Validity and Reliability Problems of Psychiatric DiagnosisPsychiatric diagnosis has faced criticism in the past for lacking validity. Study DetailsThe goal of this study was to evaluate the inter-rater reliability of psychiatric diagnosis using diagnostic criteria from the International Classification of Diseases 10 (ICD-10). In other words, the authors wanted to measure how often doctors agreed on a psychiatric diagnosis given a set of symptoms. The authors describe the overall reliability of psychiatric diagnosis in the current study as “modest.”