Schedule for Nonadaptive and Adaptive Personality
The Schedule for Nonadaptive and Adaptive Personality is a self-reporting questionnaire for assessment of personality disorders introduced in 1993 by Lee Anna Clark. It is not to be confused with SNAP-IV — the Swanson, Nolan, and Pelham Rating Scale, rev. 4.
Initially it was compiled from the DSM-III criteria. The questions are grouped into 15 scales. Twelve of them assess maladaptive personality: mistrust, self-harm, eccentric perceptions, aggression, manipulativeness, entitlement, detachment, exhibitionism, dependency, impulsivity, workaholism, propriety, and three assess rather broad traits: negative temperament, positive temperament, disinhibition, The convergence of SNAP with other independently developed tests, such as DAPP-BQ, are noted in literature.
One study provided some evidence for the test-retest reliability and predictive validity.
