Poster Abstracts

Abstract

Working memory (WM) and executive functioning (EF) are frequently identified as areas of relative cognitive weakness among children with cognitive disorders including attention-deficit/hyperactivity disorder (ADHD). However, there is significant variability in the cognitive profiles of these children, and comorbid learning and cognitive differences may also impact performance. The present study investigated whether distinct latent profiles emerge in a pediatric sample of 106 children referred for neuropsychological assessment (M=10.93 years, 38.7% female) using performance on WISC-V Digit Span and DKEFS Letter-Number Sequencing, Color-Word Inhibition, and Color-Word Inhibition-Switching. Latent profile analysis revealed two discrete latent subgroups within the sample. Group 1 was defined by low average WM and EF and below average inhibitory control, whereas Group 2 was defined by broadly average performance across domains. Latent groups significantly differed on FSIQ (χ2[1]=35.85, p=<.001) but not age χ2 [1]=0.54, p=.464. Membership in Group 1 predicted learning disorder diagnosis (χ2[1]=8.11, p=.004) but not ADHD diagnosis (χ2[1]=0.78, p=.376). These findings reveal heterogeneity in WM and EF cognitive performances in a pediatric mixed clinical sample, and suggest that overall intellectual functioning and learning disorder diagnosis, rather than ADHD diagnosis, drives subgroup membership.

First AuthorErin T Kaseda
Second AuthorIzhani Rosa
Third AuthorKatherine C Paltell
Fourth AuthorAllison N Shields
Fifth AuthorAlexandra C Kirsch