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Updated: Oct 10, 2025

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
Published on: January 23, 2017
Modeling the Speeded Determinants of Adolescents' Academic and Attentional Functioning
Holly N Wakeman1, Daniel R Leopold1,2, Richard K Olson1
1Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, Co, USA.
Abstract:
The current study utilized a large, unselected sample of adolescent twins to examine whether processing speed (PS) is an important shared predictor that accounts for covariance among reading, math, ADHD, and rapid naming (RN). The best fitting model included correlated but distinguishable latent measures of PS, RN, reading, math, inattention, hyperactivity/impulsivity, and academic fluency. PS was a shared predictor across all outcomes, while RN was uniquely associated with reading, fluency, and (albeit weakly) math. The results add to a growing literature suggesting that PS and RN may be important components of comprehensive neuropsychological models of academics, ADHD, and their covariation.
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