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Updated: Jun 2, 2026

Comparing Eye-tracking Data of Children with High-functioning ASD, Comorbid ADHD, and of a Control Watching Social Videos
Published on: December 7, 2018
Impact of IQ discrepancy on executive function in high-functioning autism: insight into twice exceptionality
M Layne Kalbfleisch1, Ashlee R Loughan
1College of Education and Human Development, George Mason University, Fairfax, VA, USA. mkalbfle@gmu.edu
Abstract:
We examined the impact of IQ discrepancy (IQD) within (1) and above (1+) one standard deviation on executive function in HFA using the BRIEF. We hypothesized that IQD would benefit executive function. IQD 1 is hallmarked by deficits in BRIEF indices and subscales inhibit, shift, initiate, working memory, planning and organization, and monitor (MANCOVA, p < .003, corrected). As IQD increases to 1+, deficits are fewer, corresponding to subscales inhibit, shift, and initiate. Pearson correlations (p < .004, corrected) identify significant relationships for FSIQ and BRIEF Global Composite (r = -.66, p = .002) and Metacognition subscales plan/organize (r = -.64, p = .003) and monitor (r = -.63, p = .004). Results suggest IQD 1+ favoring verbal IQ may support these aspects of executive function in HFA.
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