APA Dictionary of Psychology

an assessment battery that evaluates cognitive ability according to the PASS model. Applicable to both children and adolescents, the test yields separate scores for planning, attention, simultaneous-processing abilities, and successive-processing abilities, as well as an overall score. Among its uses is the evaluation and assessment of learning disabilities as defined in the Individuals With Disabilities Education Act. [devised in the late 1980s by Canadian psychologist Jagannath Prasad (J. P.) Das (1931–  ) and U.S. psychologist Jack A. Naglieri (1950–  )]