reliability
receive same results every time
inter-rater reliability
extent to which two clinicians agree on diagnosis of particular patient
validity
whether a diagnostic category is able to predict behavioural and psychiatric disorders accurately
concurrent validity
ability of a diagnostic category to estimate an individual’s present standing factors related to the disorder but not themselves part of the diagnostic criteria
predictive validity
ability of a test to predict the future course of an individual’s development
DSM-I
- unreliable
DSM-II
broadened to include disorders seen in outpatient settings
DSM-III
- multiaxial
DSM-III-R
- changed some diagnostic criteria, added some new disorders
DSM-IV
criticisms - revisions occurring too quickly
- more diagnoses
DSM-V
arguments against classification
criticisms agains DSM