Is the Intellectual Functioning Component of AAIDD's 12th Manual Satisficing?

Given this context, the opinions expressed here are based on the author's 45+ years of experience, including 12 years as a practicing school psychologist, an intelligence researcher and scholar, a university professor, an author of a major intelligence test (Woodcock-Johnson IV [WJ IV]), and a...

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Bibliographic Details
Published in:Intellectual and developmental disabilities 2021-10, Vol.59 (5), p.369-375
Main Author: McGrew, Kevin S.
Format: Article
Language:English
Subjects:
Auditory Perception
Capital punishment
Cognitive Ability
Developmental Disabilities
Efficiency
Factor Analysis
Guidance
Intellectual disabilities
Intellectual Disability
Intelligence Quotient
Intelligence tests
Measurement Techniques
Punishment
School Psychologists
Short Term Memory
Statistical Data
Taxonomy
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Summary:Given this context, the opinions expressed here are based on the author's 45+ years of experience, including 12 years as a practicing school psychologist, an intelligence researcher and scholar, a university professor, an author of a major intelligence test (Woodcock-Johnson IV [WJ IV]), and a frequent expert regarding the intelligence quotient (IQ) prong in intellectual disability (ID) death penalty cases following Atkins v. Virginia. Another example is that when mentioning crystallized intelligence across pages 25–28 and in the CHC definition in the glossary [p. 118], the term is used 12 times, and is incorrectly spelled crystalized [sic] in 11 of the 12 instances.) The manual mentions these “additional” abilities after the king and queen (Gf and Gc) are first anointed as the basis of the full-scale score that represents general intelligence—“the full-scale IQ score is based on general intelligence (i.e., g) that encompasses crystalized [sic] intelligence and fluid intelligence part scores, along with as many as six additional broad-strata abilities” (emphasis added; p. 27). In high-stakes IQ prong settings (e.g., social security and special education eligibility, Atkins death penalty cases), certain measurement issues almost always require attention. [...]many high-stakes ID cases often include case files that include multiple IQ scores across time or from different IQ tests.
ISSN:1934-9491
1934-9556
DOI:10.1352/1934-9556-59.5.369