The Relationship of IQ to Effort Test Performance |
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| Authors: | Andy C. Dean Tara L. Victor Kyle B. Boone Ginger Arnold |
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| Affiliation: | 1. Harbor-UCLA Medical Center , Torrance, CAandydean1@msn.com;3. California State University—Dominguez Hills , Carson, CA;4. Harbor-UCLA Medical Center , Torrance, CA;5. Kaiser Permanente–Sunset , Los Angeles, CA, USA |
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| 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. |
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| Keywords: | Effort IQ Malingering Mental retardation Specificity Validity |
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