Abstract
Neuropsychological assessments of outcome after traumatic brain injury (TBI) are often unrelated to self-reported problems after TBI. The current study cluster-analyzed the Wechsler Adult Intelligence Scale–Third Edition (WAIS–III) subtest scores from mild, moderate, and severe TBI (n = 220) and orthopedic injury control (n = 95) groups, to determine whether specific cognitive profiles are related to people’s perceived outcomes after TBI. A two-stage cluster analysis produced 4- and 6-cluster solutions, with the 6-cluster solution better capturing subtle variations in cognitive functioning. The 6 clusters differed in the levels and profiles of cognitive performance, self-reported recovery, and education and injury severity. The findings suggest that subtle cognitive impairments after TBI should be interpreted in conjunction with patient’s self-reported problems.
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