The Cattell-Horn-Carroll Theory (Willis, 2011) posits several components of general intelligence (e.g., fluid reasoning, visual-spatial memory, and processing speed examined in this study). In regards to measures of general intelligence, nonverbal cognitive measures can reduce verbal load and more accurately appraise non-verbal and non-native English speakers (Johnsen, 2017). In the present study, researchers hypothesized participants with ADHD, the most common neuropsychiatric disorder (Thomas et al., 2015) commonly associated with memory difficulties, would score lower on memory and attention tests than LD and no-diagnosis participants.
Bufford, Rodger K.; Meguro, Laurie; Weeks, Tricha; Summers, William; and Roid, Gale, "Poster: Nonverbal Cognitive Assessment for Special-Needs or Non-English ADHD or LD Cases" (2018). Faculty Publications - Doctor of Psychology (PsyD) Program. 349.