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In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a r t i c l e i n f o a b s t r a c t During the past decade the Cattell–Horn Gf–Gc(More)
This abstract outlines the procedures followed in developing and validating the WJ III. Throughout the development and the design of associated research studies, test standards as outlined in the Standards for Educational and Psychological Testing were followed carefully. This abstract contains a summary of information from the WJ III Technical Manual(More)
a r t i c l e i n f o a b s t r a c t We examined the degree to which the conventional notion of g associated with IQ tests and general cognitive ability tests (COG-g) relate to the general ability that underlies tests of reading , math, and writing achievement (ACH-g). Two large, nationally representative data sets and two independent(More)
In the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III; D. Wechsler, 1997), the manual reports several confirmatory factor analyses in support of the instrument's latent factor structure. In practice, examiners frequently compare an examinee's score from a current administration of the WAIS-III with the results from a previous test administration.(More)
This study employed structural equation modeling to examine the effects of Cattell–Horn–Carroll (CHC) abilities on reading decoding skills using five age-differentiated subsamples from the standardization sample of the Wood-cock–Johnson III (Woodcock, McGrew, & Mather, 2001). Using the Spear-man Model including only g, strong direct effects of g on reading(More)
This study identifies components of personal competence and community adjustment in a national sample of persons with mental retardation living in residential facilities of six or fewer residents. Factor analysis of 65 variables yielded an 8 principal component solution that accounted for approximately half the total variance in the observed variables(More)
The purpose of the present study was to determine whether differences in community adjustment existed for three groups of young adults with mental retardation using data organized on the basis of four empirically validated factors identified in prior research. A descriptive discriminant function analysis was used as a follow-up to a statistically(More)