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Glenn, S.; Cunningham, C. – Journal of Intellectual Disability Research, 2005
The British picture vocabulary scales (BPVS-II) and the Leiter international performance scales (Leiter-R), both restandardised in 1997, are often used in experimental studies to match individuals with intellectual impairment. Both provide a brief measure of mental age, and cover a wide ability range using a simple format. The BPVS-II assesses…
Descriptors: Young Adults, Nonverbal Ability, Intelligence Quotient, Mental Age