![]() The Trail Making Test was initially designed as part of the U.S. The Trail Making Test has been highly correlated with driving performance ( Hopewell, 2002). Pellerito Jr., in Handbook of Assessment in Clinical Gerontology (Second Edition), 2010 Memory Assessments 86 This test has been shown to be useful to indicate if a road test is required to determine continued safe driving ability. ![]() Norms have been established based on age and education. For TMT-B, an average score is 75 seconds and a deficient score is greater than 273 seconds. An average score for TMT-A is 29 seconds and a deficient score is greater than 78 seconds. If the person cannot complete the test in 5 minutes, the test is discontinued. The time includes correction of errors prompted by the examiner. The TMT is scored by how long it takes to complete the test. The TMT-A uses all numbers, whereas the TMT-B alternates numbers and letters, requiring the patient to switch between numbers and letters in consecutive order. 85 In each test the participant is asked to draw a line between 24 consecutive circles that are randomly arranged on a page. ![]() The TMT has two parts the TMT-A (rote memory) and TMT-B (executive functioning). The Trail Making Test (TMT) is a freely available, timed, neuropsychological test that involves visual scanning and working memory. Cathy Haines Ciolek, Sin Yi Lee, in Guccione's Geriatric Physical Therapy, 2020 Trail Making Test ![]()
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