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Direct linkCalhoun, Susan L.; Mayes, Susan Dickerson – Psychology in the Schools, 2005
The Processing Speed Index (PSI) was first introduced on the Wechsler Intelligence Scale, Third Edition (WISC-III; D. Wechsler, 1991), and little is known about its clinical significance. In a referred sample (N = 980), children with neurological disorders (ADHD, autism, bipolar disorder, and LD) had mean PSI and Freedom from Distractibility Index…
Descriptors: Intelligence Tests, Intelligence Quotient, Cognitive Processes, Comprehension
