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Gregoire, Jacques; Coalson, Diane L.; Zhu, Jianjun – Assessment, 2011
The Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV) does not include verbal IQ and performance IQ scores, as provided in previous editions of the scale; rather, this edition provides comparisons among four index scores, allowing analysis of an individual's WAIS-IV performance in more discrete domains of cognitive ability. To supplement…
Descriptors: Intelligence Quotient, Measures (Individuals), Cognitive Ability, Scores
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Whitaker, Simon – Intellectual and Developmental Disabilities, 2008
A meta-analysis of the stability of low IQ (IQ less than 80) was performed on IQ tests that have been commonly used--tests that were derived by D. Wechsler (1949, 1955, 1974, 1981, 1991, 1997) and those based on the Binet scales (L. M. Terman, 1960; L. M. Terman & Merrill, 1972). Weighted-mean stability coefficients of 0.77 and 0.78 were found…
Descriptors: Intelligence Tests, Intelligence Quotient, Evaluation Methods, Test Validity
Templer, Donald I.; Hartlage, Lawrence C. – J Clin Psychol, 1969
Descriptors: Clinical Diagnosis, Comparative Testing, Evaluation Methods, Intelligence Quotient
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Jauregi, J.; Arias, C.; Vegas, O.; Alen, F.; Martinez, S.; Copet, P.; Thuilleaux, D. – Journal of Intellectual Disability Research, 2007
Background: Prader-Willi syndrome (PWS) is associated with a characteristic behavioural phenotype whose main features are, alongside compulsive hyperphagia, deficits in social behaviour: social withdrawal, temper tantrums, perseverative speech and behaviour, mental rigidity, stereotyped behaviour, impulsiveness, etc. Similar symptoms may also be…
Descriptors: Patients, Personality Traits, Memory, Intelligence Quotient
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Hopwood, Christopher J.; Richard, David C. S. – Assessment, 2005
Research on the Wechsler Adult Intelligence Scale-Revised and Wechsler Adult Intelligence Scale-Third Edition (WAIS-III) suggests that practicing clinical psychologists and graduate students make item-level scoring errors that affect IQ, index, and subtest scores. Studies have been limited in that Full-Scale IQ (FSIQ) and examiner administration,…
Descriptors: Scoring, Psychologists, Intelligence Quotient, Graduate Students
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Carvajal, Tony L.; And Others – Psychology in the Schools, 1984
Investigated the change in IQ scores over time of subjects in classes for the Educable Mentally Handicapped. Analysis indicated a significant difference existed between Wechsler Intelligence Scale for Children scores administered at initial placement and Wechsler Adult Intelligence Scale scores administered later (mean age, 17 years-6 months).…
Descriptors: Adults, Children, Elementary Secondary Education, Evaluation Methods