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Johnson, Wendy; Deary, Ian J.; Bouchard, Thomas J., Jr. – Educational and Psychological Measurement, 2018
Most study samples show less variability in key variables than do their source populations due most often to indirect selection into study participation associated with a wide range of personal and circumstantial characteristics. Formulas exist to correct the distortions of population-level correlations created. Formula accuracy has been tested…
Descriptors: Correlation, Sampling, Statistical Distributions, Accuracy
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Huang, Hung-Yu; Wang, Wen-Chung – Educational and Psychological Measurement, 2013
Both testlet design and hierarchical latent traits are fairly common in educational and psychological measurements. This study aimed to develop a new class of higher order testlet response models that consider both local item dependence within testlets and a hierarchy of latent traits. Due to high dimensionality, the authors adopted the Bayesian…
Descriptors: Item Response Theory, Models, Bayesian Statistics, Computation
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Bowden, Stephen C.; Saklofske, Donald H.; Weiss, Lawrence G. – Educational and Psychological Measurement, 2011
A measurement model describes both the numerical and theoretical relationship between observed scores and the corresponding latent variables or constructs. Testing a measurement model across groups is required to determine if the tests scores are tapping the same constructs so that the same meaning can be ascribed to the scores. Contemporary tests…
Descriptors: Intelligence, Construct Validity, Measurement, Measures (Individuals)
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Bowden, Stephen C.; Lange, Rael T.; Weiss, Lawrence G.; Saklofske, Donald H. – Educational and Psychological Measurement, 2008
A measurement model is invoked whenever a psychological interpretation is placed on test scores. When stated in detail, a measurement model provides a description of the numerical and theoretical relationship between observed scores and the corresponding latent variables or constructs. In this way, the hypothesis that similar meaning can be…
Descriptors: Intelligence, Intelligence Tests, Measures (Individuals), Foreign Countries
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Bowden, Stephen C.; Gregg, Noel; Bandalos, Deborah; Davis, Mark; Coleman, Chris; Holdnack, James A.; Weiss, Larry G. – Educational and Psychological Measurement, 2008
Intelligence tests are usually part of the assessment battery for the diagnosis of adults with learning disabilities (LD) and attention deficit hyperactivity disorder (ADHD). Professionals must ensure that inferences drawn from such test scores are equivalent across populations with and without disabilities. Examination of measurement equivalence…
Descriptors: Intelligence, College Students, Learning Disabilities, Hyperactivity
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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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Fraboni, Maryann; Saltstone, Robert – Educational and Psychological Measurement, 1992
Six hierarchical clustering methods were applied to subtest intercorrelations for each of the nine age groups in the Wechsler Adult Intelligence Scale-Revised (WAIS-R) standardization sample. Results point to the possibility of three simultaneously plausible solutions as they support each of the traditional factor structures in varying degrees.…
Descriptors: Age Differences, Cluster Analysis, Construct Validity, Factor Structure
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Feingold, Alan – Educational and Psychological Measurement, 1984
It was predicted that there would be variable IQ discrepancies at different ages because of differential age adjustments on the norms of the Wechsler Adult Intelligence Scale (WAIS) and the WAIS-Revised (WAIS-R). The use of equivalent WAIS and WAIS-R sums of scaled scores demonstrated the predicted variable discrepancies. (Author/BW)
Descriptors: Adults, Age Differences, Comparative Analysis, Equated Scores
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Carless, Sally A. – Educational and Psychological Measurement, 2000
Examined the factor structure of the Multidimensional Aptitude Battery (MAB) (D. Jackson, 1984) and the overlap between the MAB and the Wechsler Adult Intelligence Scales-Revised (WAIS-R) using a sample of 85 adults. Results show conditions under which the MAB is a suitable alternative to the MAB. The MAB is not suitable when detailed information…
Descriptors: Aptitude Tests, Factor Structure, Intelligence Tests, Scores
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Patterson, Mike; And Others – Educational and Psychological Measurement, 1995
Protocols (n=149) of the Wechsler Adult Intelligence Scale-Revised that were completed by 22 graduate students were analyzed to determine the effectiveness of practice administrations in developing examiner competence. Even completing 10 administrations did not reduce errors students made, suggesting that careful training is required. (SLD)
Descriptors: Competence, Graduate Students, Higher Education, Intelligence Tests
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Fraboni, Maryann; And Others – Educational and Psychological Measurement, 1989
Seven hierarchical clustering methods were applied to the Wechsler Adult Intelligence Scale-Revised (WAIS-R) scores of 121 medical rehabilitation clients to investigate the possibility of method-dependent results and determine the stability of the clusters. This multiple-methods cluster analysis suggests that the underlying constructs of the…
Descriptors: Adults, Cluster Analysis, Construct Validity, Factor Analysis
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Spruill, Jean; Beck, Brett – Educational and Psychological Measurement, 1986
This study is a concurrent validation of Level II of the Wide Range Achievement Test-Revised (WRAT-R) using the Wechsler Adult Intelligence Scale (WAIS) Verbal, Performance, and Full Scale IQ scores as criterion measures. Forty-five subjects were administered the WAIS-R and WRAT-R and their scores correlated. (Author/LMO)
Descriptors: Achievement Tests, Adults, Comparative Testing, Concurrent Validity
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Whitworth, Randolph H.; Gibbons, Ruth T. – Educational and Psychological Measurement, 1986
A cross-racial comparison of the Wechsler Adult Intelligence Scale (WAIS) was made with the revised version, the WAIS-R. Three groups of Anglo, Black, and Mexican-American male college students were administered both versions of the WAIS on the same day. Significant differences were found among the racial groups. (Author/LMO)
Descriptors: Analysis of Variance, Anglo Americans, Blacks, Comparative Testing
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Willson, Victor L.; Reynold, Cecil R. – Educational and Psychological Measurement, 1985
Techniques for constructing short forms of tests are discussed, and an example is given using the Wechsler Adult Intelligence Scale-Revised. Reliability and validity estimation equations are presented. (GDC)
Descriptors: Adults, Individual Testing, Intelligence Tests, Norm Referenced Tests
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Braden, Jeffery P. – Educational and Psychological Measurement, 1986
A procedure is proposed for determining whether correlations obtained between two measures justify the assumption that the measures are identical. It is intended especially for small samples. In the example, the performance scales of two intelligence tests were administered to 32 deaf adolescents. (GDC)
Descriptors: Correlation, Deafness, Equated Scores, Evaluation Problems
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