Psychiatric diagnosis in Japan. 2. Reliability of conventional diagnosis and discrepancies with Research Diagnostic Criteria diagnosis.
Twenty Japanese psychiatrists were asked for their conventional diagnoses for each of 29 case vignettes already diagnosed according to Research Diagnostic Criteria. The reliability coefficients of Japanese conventional diagnoses were low; only two categories exceeded the intraclass correlation coefficient of 0.7. However, the low reliability was found to be due not to random variations but to the difference of individual psychiatrists in setting boundaries of diagnostic entities though sharing the common prototype for each diagnostic category.
Kitamura
T
T
Division of Psychogeriatrics, National Institute of Mental Health, Ichikawa, Japan.
Shima
S
S
Sakio
E
E
Kato
M
M
D000328:Adult; D001291:Attitude of Health Personnel; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D001523:Mental Disorders / Q000145:classification / Q000175:diagnosis*; D008875:Middle Aged; D009497:Neurotic Disorders / Q000145:classification / Q000175:diagnosis; D015588:Observer Variation; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D011618:Psychotic Disorders / Q000145:classification / Q000175:diagnosis; D011897:Random Allocation; D015203:Reproducibility of Results; D009626:Terminology as Topic