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A-159 Attention and Executive Function Predict Immediate and Delayed Verbal Memory in Healthy Youth: A Structural Equation Modeling Approach


 
 
 Previous neuropsychological assessments have sought to understand the interrelatedness of cognitive functions when interpreting neuropsychological test performance (e.g., Delis-Kaplan Executive Function System; DKEFS), given that they rarely function in isolation. Test results may be misinterpreted if not contextualized within individuals’ overall cognitive profiles; therefore, the present study evaluated the impact of attention and executive function (EF) on verbal learning and memory (VLM) in a sample of healthy youth.
 
 
 
 Participants (n = 166, M age = 12.0 years, 79.5% male, M FSIQ = 109.6) completed a two-hour neuropsychological battery, including the Wide Range Assessment of Learning and Memory, 2nd Edition List Learning (LL), DKEFS Trail Making Test (TMT), and Wechsler Intelligence Scale for Children, Fourth Edition Digit Span (DS) and Letter-Number Sequencing (LNS). Structural equation modeling was used to evaluate the impact of attention and EF on immediate and delayed VLM.
 
 
 
 Latent factors were estimated for attention/EF (DS Forward, DS Backward, LNS, and TMT Condition 4) and VLM (LL Trials 1–4), and the model converged with adequate model fit statistics (RMSEA = 0.064; CFI = 0.975; TLI = 0.963, SRMR = 0.039). Attention and EF predicted performance on both immediate and delayed VLM (ps < 0.001) when accounting for age.
 
 
 
 The results demonstrated that attention and EF predicted immediate and delayed VLM in youth, suggesting that participants’ performance on VLM may be impacted by weaknesses in attention and EF. As a result, clinicians are recommended to examine patterns of performances across multiple cognitive domains when interpreting individual test scores. This is especially important in pediatric populations given the developmental changes the brain undergoes during childhood and adolescence.
 
