Neuropsychological Studies of Mild Traumatic Brain Injury: A Meta-Analytic Review of Research Since 1995

K.A.R. Frencham, Allison Fox, Murray Maybery

Research output: Contribution to journalArticle

239 Citations (Scopus)

Abstract

A meta-analysis conducted by Binder, Rohling and Larrabee (1997) established a relationship between mild traumatic brain injury (TBI) and small reductions in cognitive functioning in individuals assessed more than 3 months post-injury. As a follow-up, this study summarized similar research that (1) was published since the previous meta-analysis, and (2) included data collected at any stage post-injury. An extensive literature search revealed 17 suitable studies from which effect sizes were aggregated. The overall effect size was g = 0.32, p <.001. Speed of processing measures had the largest effect, g = 0.47, p <.001. The merging of post-acute effect sizes with those reported in Binder et al.'s review yielded a nonsignificant result, g = 0.11. Time since injury was found to be a significant moderator variable, with effect sizes tending to zero with increasing time post injury.
Original languageEnglish
Pages (from-to)334-351
JournalJournal of Clinical and Experimental Neuropsychology
Volume27
Issue number3
DOIs
Publication statusPublished - 2005

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