Related Experiment Video
Updated: Jul 3, 2026

The Adventures of Fundi Intervention Based on the Cognitive and Emotional Processing in Attention Deficit Hyperactive Disorder Patients
Published on: June 12, 2020
Factor structure of the restricted academic situation scale: implications for ADHD
Sherif Karama1, Leila Ben Amor, Natalie Grizenko
1Department of Psychiatry, McGill University, Douglas Hospital Research Centre, Montreal, Canada.
Background:
To study the factor structure of the Restricted Academic Situation Scale (RASS), a psychometric tool used to assess behavior in children with ADHD, 117 boys and 21 girls meeting Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV) criteria for ADHD and aged between 6 and 12 years were recruited. Assessments were carried out before and 65 min after the administration of either a placebo or 0.25 mg/kg of methylphenidate. Placebo and methylphenidate were each administered according to a double-blind placebo-controlled crossover design.
Results:
Principal component analysis, followed by a confirmatory maximum likelihood factor analysis, revealed two main factors for the RASS, task disengagement (TD) and motor activation (MA). Only TD was inversely correlated with age, indicating that TD and MA may be differentially modulated during development.
Conclusions:
MA and TD are distinct traits of ADHD. It may be important to consider them separately when conducting studies on ADHD.
Related Concept Videos
Attention-Deficit/Hyperactivity Disorder
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.
Theory of Attribution II: Kelley's Covariation Theory
Fundamental Attribution Error
Factorial Design
Oppositional Defiant Disorder
Diagnostic Criteria and...
Reliability and Validity

