ADHD and sluggish cognitive tempo throughout childhood: Temporal invariance and stability from preschool through ninth grade

摘要

BackgroundAlthough multiple cross-sectional studies have shown symptoms of sluggish cognitive tempo (SCT) and attention-deficit/hyperactivity disorder (ADHD) to be statistically distinct, studies have yet to examine the temporal stability and measurement invariance of SCT in a longitudinal sample. To date, only six studies have assessed SCT longitudinally, with the longest study examining SCT over a two-year period. The overall goals of this study were to assess the ten-year longitudinal stability and inter-factor relationships of ADHD and SCT symptoms among a community sample of children.