Cognitive Disability Model

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The Cognitive Performance Test was developed in 1986 by an occupational therapist named Theressa Burns (Douglas, Letts, & Liu, 2007). Funding support was provided by the National Institute on Aging and the Veterans Administration (Burns, Mortimer, & Merchak, 1994). The CPT was created to fulfill the need to accurately assess the cognitive disability in individuals with dementia in order to help caregivers build a safe environment (Bar-Yosef, Weinblatt, & Katz, 1999). The Cognitive Performance Test was designed based on the Cognitive Disability Model in occupational therapy in which functional disability is divided into six ordinal levels that rate cognition (Bar-Yosef, Weinblatt, & Katz, 1999). The first CPT manual was published in 1986