alexa A comprehensive review of the Paced Auditory Serial Addition Test (PASAT).
Neurology

Neurology

Journal of Multiple Sclerosis

Author(s): Tombaugh TN

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Abstract The Paced Auditory Serial Addition Test (PASAT) was developed to assess the effects of traumatic brain injury (TBI) on cognitive functioning. Subsequent research has shown that the PASAT has clinical utility in detecting impairments in cognitive processing in patients with a wide variety of neuropsychological syndromes. Gronwall and Sampson (1974) originally assumed the PASAT measured speed of information processing. However, the PASAT is now recognized as a measure of multiple functional domains because it requires the successful completion of a variety of cognitive functions, primarily those related to attention. While the PASAT has demonstrated good psychometric properties such as high levels of internal consistency and test-retest reliability, several issues should be considered when administering and interpreting this test. For example, test-retest scores show that the PASAT is extremely susceptible to practice effects. The PASAT is also negatively affected by increasing age, decreasing IQ, and low math ability. Administration of the PASAT creates an undue amount of anxiety and frustration in participants which affects their performance on this and other neuropsychological tests, and may subsequently increase their reluctance to return for follow up testing. Demands for rapid responding place individuals with speech or language impairment at a distinct disadvantage, as it does for those who naturally speak slowly for cultural or geographic reasons. In conclusion, the PASAT represents a reliable test that has legitimate but restricted clinical applications. A low score on the PASAT may not necessarily indicate or confirm the presence of neurological pathology. The PASAT is a highly sensitive, non-specific test and as such, care must be taken to identify the reasons underlying any low score before interpreting it as clinically significant. This article was published in Arch Clin Neuropsychol and referenced in Journal of Multiple Sclerosis

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