Schedule for Nonadaptive and Adaptive Personality

The Schedule for Nonadaptive and Adaptive Personality (SNAP) is a self-reporting questionnaire for assessment of personality disorders (Axis II of the Diagnostic and Statistical Manual of Mental Disorders) ^[1] introduced in 1993 by Lee Anna Clark. ^[2] It is not to be confused with SNAP-IV — the Swanson, Nolan, and Pelham Rating Scale, rev. 4.^[3]

Schedule for Nonadaptive and Adaptive Personality
Purpose	assess personality disorder

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, ^[4] The convergence of SNAP with other independently developed tests, such as DAPP-BQ (Dimensional Assessment of Personality Pathology—Basic Questionnaire), are noted in literature.^{[citation needed][5]}

One study provided some evidence for the test-retest reliability and predictive validity.^[6]