Jessica Foley1, Jessica Garcia, Lindsay Shaw, Charles Golden. 1. Department of Psychiatry and Biobehavioral Sciences, UCLA David Geffen School of Medicine, Semel Institute for Neuroscience and Human Behavior, Los Angeles, CA, USA. jfoley@mednet.ucla.edu
Abstract
INTRODUCTION: This study examined whether IQ predicts neuropsychological performance among children with varying ability levels. METHOD: 177 children/adolescents were subdivided as Below Average (BA; N = 71; IQ = 60-85), Average (A; N = 72; IQ = 90-110), or Above Average (AA; N = 34; IQ = 115-140) in IQ. Assessments included intelligence, achievement, memory, and executive functioning measures. RESULTS: Group differences were found on all tests (p < .001). Planned comparisons revealed differences between BA and A on seven variables, and between A and AA on five variables with small-to-medium effect sizes. Correlations were found between IQ and neuropsychological functioning and varied by group membership. DISCUSSION: In children, IQ predicts neuropsychological performance differentially based upon ability level, with stronger relationships shown in lower IQ ranges.
INTRODUCTION: This study examined whether IQ predicts neuropsychological performance among children with varying ability levels. METHOD: 177 children/adolescents were subdivided as Below Average (BA; N = 71; IQ = 60-85), Average (A; N = 72; IQ = 90-110), or Above Average (AA; N = 34; IQ = 115-140) in IQ. Assessments included intelligence, achievement, memory, and executive functioning measures. RESULTS: Group differences were found on all tests (p < .001). Planned comparisons revealed differences between BA and A on seven variables, and between A and AA on five variables with small-to-medium effect sizes. Correlations were found between IQ and neuropsychological functioning and varied by group membership. DISCUSSION: In children, IQ predicts neuropsychological performance differentially based upon ability level, with stronger relationships shown in lower IQ ranges.