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The purposes of the present studies were to (a) examine the factor structure of sluggish cognitive tempo (SCT) and attention‐deficit/hyperactivity disorder (ADHD) in college students and (b) examine the associations between SCT and academic functioning and internalizing symptoms in college students with and without ADHD.

In Study 1, a confirmatory factor analysis of the Barkley Adult ADHD Rating Scale‐IV (BAARS‐IV) was conducted in a sample of 768 college students (aged 17–34 years, 68% female). In Study 2, we examined the relation of SCT to academic functioning and internalizing symptoms in a sample of 72 college students rigorously diagnosed with ADHD (aged 17–35 years, 44% female).

Study 1 results supported the factor structure of the BAARS‐IV, with the optimal model comprising 4 correlated but distinct factors: SCT, Inattention, Hyperactivity, and Impulsivity. After …