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Clin Neuropsychol. 2008 Jul;22(4):705-22.

The relationship of IQ to effort test performance.

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1
Harbor-UCLA Medical Center, Torrance, CA, USA. andydean1@msn.com

Abstract

The relationship between IQ and nine effort indicators was examined in a sample of 189 neuropsychology clinic outpatients who were not in litigation or attempting to obtain disability. Participants with the lowest IQ (50-59) failed approximately 60% of the effort tests, while patients with an IQ of 60 to 69 failed 44% of effort indicators, and individuals with borderline IQ (70 to 79) exhibited a 17% failure rate. All patients with IQ < 70 failed at least one effort test. Cutoffs for the Warrington Recognition Memory Test (Words) and Finger Tapping maintained the highest specificities in low IQ samples.

PMID:
17853124
DOI:
10.1080/13854040701440493
[Indexed for MEDLINE]
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