The validity of the assessment of psychopathology in the psychoses.
This paper reviews recent progress in the assessment of the psychopathology of psychosis and focuses upon a number of persistent limitations. In particular the over-emphasis upon reliability at the expense of validity is highlighted and the relationship between reliability and validity is reconsidered. A number of strategies aimed at improving the validity of psychopathological measures are outlined. Proposals to deploy such variables differently in research strategies and analyses are endorsed.
McGorry
P D
PD
NH & MRC Schizophrenia Research Unit, Royal Park Hospital, Parkville, Victoria, Australia.
Copolov
D L
DL
Singh
B S
BS
D006801:Humans; D007406:Interview, Psychological; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D011618:Psychotic Disorders / Q000175:diagnosis*