The Flynn effect refers to the rise in IQ throughout the 20th century. This study examined whether the Flynn effect has also elevated performance on neuropsychological tests. A search of published norms revealed five tests with appropriate normative data available for comparison. These tests were the Trail-Making Test (TMT), Symbol Digit Modalities Test (SDMT), Boston Naming Test, Finger Tapping, and Grooved Pegboard. Results indicated a strong Flynn effect for Parts A and B of the TMT and a probable Flynn effect for the oral SDMT. No Flynn effect was evident for the other tests. Implications for clinical assessment are discussed.
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Dickinson et al. (2011) studied this question.
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