Attention‐deficit/hyperactivity disorder and sluggish cognitive tempo throughout childhood: temporal invariance and stability from preschool through ninth grade

Leopold, Daniel R.; Christopher, Micaela E.; Burns, G. Leonard; Becker, Stephen P.; Olson, Richard K.; Willcutt, Erik G.

doi:10.1111/jcpp.12505

Attention‐deficit/hyperactivity disorder and sluggish cognitive tempo throughout childhood: temporal invariance and stability from preschool through ninth grade

Background Although 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 s…