The WAIS-III and WAIS-IV: Daubert Motions Favor the Certainly False over the Approximately True

James R. Flynn

76 citations0/0 files storedApplied Neuropsychology

No readable copy stored yet — this record is metadata only.

No open-access location is known for this record yet.

Literature note Cite in a project Citation map

Cognitive Abilities and Testing Psychometric Methodologies and Testing Psychological Testing and Assessment

Abstract

Daubert motions oppose adjusting IQ scores. They argue that the rate of IQ gains over time (the Flynn Effect) cannot be set at 0.3 points per year with scientific exactitude; therefore, the adjustment formula that rate implies is inadmissible in capital cases. This ignores the fact that there is universal agreement in the scientific community that there have been substantial gains and that, therefore, the worst possible option is to simply leave inflated IQ scores unadjusted. That would undermine equity entirely. New data from the WAIS-IV are included in a meta-analysis of 14 combinations of Wechsler and Binet IQ tests. The overall average is a rate of 0.311 points per year; the average within Wechsler tests is 0.299 point per year. A new estimate of the extent to which the WAIS-III inflated IQs, even at the time it was normed, yields 1.65 points (rather than 2.34 points). However, two new studies comparing the WAIS-III to the Woodcock-Johnson III and the Kaufman Adolescent and Adult Intelligence Scale give huge estimates. It is recommended that WAIS-III scores be set aside and subjects tested on the WAIS-IV and the Stanford-Binet 5.

Paper brief

Loading…

Cite this work

Citation unavailable for this work.

BibTeX RIS CSL-JSON

No public copy is stored for this record, so only the metadata is cited.

Citations in this library

Citation map →

Stored only when both papers are in the corpus — 76 citations exist upstream.

References

2012What Is Intelligence?: Beyond the Flynn Effect 2008What is intelligence?: beyond the Flynn effect 1998WAIS–III and WISC–III IQ Gains in the United States from 1972 to 1995: How to Compensate for Obsolete Norms 2007American IQ Gains From 1932 to 2002: The WISC Subtests and Educational Progress

Cited by

2010Offenders With Intellectual Disability: Characteristics, Prevalence, and Issues in Forensic Assessment 2010The Flynn Effect within subgroups in the U.S.: Gender, race, income, education, and urbanization differences in the NLSY-Children data 2014The magical numbers 7 and 4 are resistant to the Flynn effect: No evidence for increases in forward or backward recall across 85 years of data 2010Stanford-Binet and WAIS IQ differences and their implications for adults with intellectual disability (aka mental retardation)2010The Flynn effect and memory function 2011The Flynn Effect in Neuropsychological Assessment 2015A cross-cultural comparison between South African and British students on the Wechsler Adult Intelligence Scales Third Edition (WAIS-III)2021Decreases in Brain Size and Encephalization in Anatomically Modern Humans

Explore the map →

Papers that cite the same references — the relational fallback while embeddings are still backfilling.

Imported from OpenAlex (CC0) — nothing here is generated.