Occupational Therapy Adult Perceptual Screening Test (OT-APST)



The Occupational Therapy Adult Perceptual Screening Test (OT-APST), developed by Cooke (1992) and further revised in 2001, was created to quantify visual perceptual acuity which is considered the dynamic process of receiving and perceiving the environment through the senses. The measure has proved to be valid in a number of patient populations because disorders of visual perception can occur as a result of acquired brain injury, stroke, or disease often resulting in difficulties organizing, processing, and interpreting information perceived and acting appropriately on that information (Cooke, McKenna, & Fleming, 2005). The OT-APST is an amalgamation of several previously published tests in an inclusive battery format that measures functional skill level in areas commonly impacted by visual perceptual impairment and has 25 items across 7 domains. An example item of the assessment is shape constancy, where the subject must identify 4 common shapes in a mixed array of 10 shapes of varying sizes, positioned at differing angles (Cooke, McKenna, & Flemming, 2005). The design of the OT-APST requires test completion using only simple cueing and all of the test items are administered and scored according to standardized format. Achieving a score inside of normal limits is considered to be within two standard deviations of the norm, thus the OT-APST is not intended to gauge the upper limits of functioning (Cooke, McKenna, & Flemming, 2005). The OT-APST can be completed in less than 30 minutes, where only the subtest scores are used to interpret results. However, the authors suggest that the battery be completed in its entirety to maintain a reliable and valid interpretation of its results (Cooke, McKenna, & Flemming, 2005).

Jul 27, 2017 | Posted by in MEDICAL ASSISSTANT | Comments Off on Occupational Therapy Adult Perceptual Screening Test (OT-APST)

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