TABLE 2.

Description of neuropsychological measures and variables included in analyses¹

Domain	Subdomain	Measure	Dependent variable	Description
Learning and memory	Visuospatial memory	CANTAB Paired Associates Learning	Total errors	Total number of errors are adjusted for stages not completed; lower scores are indicative of better memory
Executive function	Cognitive flexibility	NEPSY-2 Design Fluency	Number correct	Total number of correct designs across both structured and unstructured conditions; higher scores are indicative of better cognitive fluency and flexibility
	Working memory	CANTAB Spatial Working Memory	Total errors	Total number of errors; lower scores are indicative of better working memory
Planning	CANTAB Spatial Working Memory	Strategy score	Number of times a participant begins a new search with a different box; lower scores represent more efficient planning
Attention	Sustained attention	Quotient ADHD System	Accuracy	Percentage of correct responses; higher scores represent better attention
Motor	Fine motor dexterity	Grooved Pegboard	Completion time	Time taken to complete task with dominant hand; lower scores are indicative of better motor ability

¹ADHD, Attention-Deficit/Hyperactivity Disorder; CANTAB, Cambridge Neuropsychological Test Automated Battery.