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McFarland, Dennis – Journal of Intelligence, 2020
Network models of the WAIS-IV based on regularized partial correlation matrices have been reported to outperform latent variable models based on uncorrected correlation matrices. The present study sought to compare network and latent variable models using both partial and uncorrected correlation matrices with both types of models. The results show…
Descriptors: Correlation, Matrices, Adults, Intelligence Tests
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Beaujean, A. Alexander; Benson, Nicholas F. – Applied Measurement in Education, 2019
Charles Spearman and L. L. Thurstone were pioneers in the field of intelligence. They not only developed methods to assess and understand intelligence, but also developed theories about its structure and function. Methodologically, their approaches were not that distinct, but their theories of intelligence were philosophically very different --…
Descriptors: Psychologists, Intelligence Tests, Scores, Theories
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Flanagan, Dawn P.; Alfonso, Vincent C.; Reynolds, Matthew R. – Journal of Psychoeducational Assessment, 2013
In this commentary, we reviewed two clinical validation studies on the Wechsler Scales conducted by Weiss and colleagues. These researchers used a rigorous within-battery model-fitting approach that demonstrated the factorial invariance of the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV) and Wechsler Adult Intelligence…
Descriptors: Psychological Studies, Intelligence Tests, Intelligence Quotient, Cognitive Ability
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Miller, Delyana I.; Davidson, Patrick S. R.; Schindler, Dwayne; Messier, Claude – Journal of Psychoeducational Assessment, 2013
New editions of the Wechsler Adult Intelligence and Memory scales are now available. Yet, given the significant changes in these new releases and the skepticism that has met them, independent evidence on their psychometric properties is much needed but currently lacking. We administered the WAIS-IV and the Older Adult version of the WMS-IV to 145…
Descriptors: Factor Analysis, Older Adults, Measures (Individuals), Memory
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Brooks, Brian L.; Holdnack, James A.; Iverson, Grant L. – Assessment, 2011
Clinicians can use the base rates of low scores in healthy people to reduce the likelihood of misdiagnosing cognitive impairment. In the present study, base rates were developed for the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV) and Wechsler Memory Scale-Fourth Edition (WMS-IV) using 900 healthy adults and validated on 28 patients…
Descriptors: Intelligence, Incidence, Head Injuries, Patients
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Fletcher, Jack M.; Stuebing, Karla K.; Hughes, Lisa C. – Journal of Psychoeducational Assessment, 2010
IQ test scores should be corrected for high stakes decisions that employ these assessments, including capital offense cases. If scores are not corrected, then diagnostic standards must change with each generation. Arguments against corrections, based on standards of practice, information present and absent in test manuals, and related issues,…
Descriptors: Testing, Mental Retardation, Validity, Intelligence Quotient
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Christensen, Bruce K.; Girard, Todd A.; Bagby, R. Michael – Psychological Assessment, 2007
An eight-subtest short form (SF8) of the Wechsler Adult Intelligence Scale, Third Edition (WAIS-III), maintaining equal representation of each index factor, was developed for use with psychiatric populations. Data were collected from a mixed inpatient/outpatient sample (99 men and 101 women) referred for neuropsychological assessment. Psychometric…
Descriptors: Psychometrics, Intelligence, Factor Structure, Intelligence Tests
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Heinly, Matthew T.; Greve, Kevin W.; Bianchini, Kevin J.; Love, Jeffrey M.; Brennan, Adrianne – Assessment, 2005
The present study determined specificity and sensitivity to malingered neurocognitive dysfunction (MND) in traumatic brain injury (TBI) for several Wechsler Adult Intelligence Scale (WAIS) Digit Span scores. TBI patients (n = 344) were categorized into one of five groups: no incentive, incentive only, suspect, probable MND, and definite MND.…
Descriptors: Patients, Pathology, Head Injuries, Neurological Impairments
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Jeyakumar, Sharon L. E.; Warriner, Erin M.; Raval, Vaishali V.; Ahmad, Saadia A. – Educational and Psychological Measurement, 2004
Tables permitting the conversion of short-form composite scores to full-scale IQ estimates have been published for previous editions of the Wechsler Adult Intelligence Scale (WAIS). Equivalent tables are now needed for selected subtests of the WAIS-III. This article used Tellegen and Briggs's formulae to convert the sum of scaled scores for four…
Descriptors: Test Reliability, Intelligence Tests, Intelligence Quotient, Scores
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Watkins, Marley W.; Kuterbach, James M.; Morgan, Rebecca J.; FitzGerald, Julie L.; Neuhard, Rachel M.; Arthur, April G.; Bucknavage, Leah B. – Journal of Postsecondary Education and Disability, 2004
The recent influx of students with disabilities into postsecondary education has generated a concomitant increase in the demand for psychoeducational assessments that include a measure of cognitive ability, either to identify ability-achievement discrepancies or to rule out alternate or comorbid diagnoses. The most commonly recommended cognitive…
Descriptors: Validity, Disabilities, Factor Analysis, Psychometrics