Accession Number : ADA328636

Title :   The Relationship Between Reliability and Validity in a Bayesian World.

Descriptive Note : Interim technical rept. Aug 96-Jul 97,

Corporate Author : ARMSTRONG LAB BROOKS AFB TX CLINICAL SCIENCES DIV

Personal Author(s) : Retzlaff, Paul D. ; Jackson, William G.

PDF Url : ADA328636

Report Date : JUL 1997

Pagination or Media Count : 18

Abstract : While the relationship between internal consistency and validity in traditional tests is well established, little is available for tests that predict dichotomous diagnostic outcomes. An understanding of such a relationship is important in cases such as the prediction of clinician diagnoses by psychological tests. Tests such as the MCMI are validated against such clinical diagnoses. The limiting effects on positive predictive powers given levels of Kappa are developed. The current work provides the relationship between Kappa and Positive Predictive Power for use with tests and applies it specifically to a test of psychopathology as an example. This may be applied to any situation where judgements are predicted by tests such as in mental health, medicine, or selection and training.

Descriptors :   *PSYCHOLOGICAL TESTS, *PSYCHIATRY, STATISTICAL DATA, DIAGNOSIS(MEDICINE), MENTAL HEALTH, BAYES THEOREM, JUDGEMENT(PSYCHOLOGY), PSYCHOMETRICS, EPIDEMIOLOGY, ABNORMAL PSYCHOLOGY, CLINICAL PSYCHOLOGY.

Subject Categories : Psychology
      Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE