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Direct linkWicherts, Jelte M.; Dolan, Conor V. – Educational Measurement: Issues and Practice, 2010
Measurement invariance with respect to groups is an essential aspect of the fair use of scores of intelligence tests and other psychological measurements. It is widely believed that equal factor loadings are sufficient to establish measurement invariance in confirmatory factor analysis. Here, it is shown why establishing measurement invariance…
Descriptors: Factor Structure, Intelligence Tests, Intelligence Quotient, Factor Analysis
van der Sluis, Sophie; Derom, Catherine; Thiery, Evert; Bartels, Meike; Polderman, Tinca J. C.; Verhulst, F. C.; Jacobs, Nele; van Gestel, Sofie; de Geus, Eco J. C.; Dolan, Conor V.; Boomsma, Dorret I.; Posthuma, Danielle – Intelligence, 2008
Sex differences on the Dutch WISC-R were examined in Dutch children (350 boys, 387 girls, age 11-13 years) and Belgian children (370 boys, 391 girls, age 9.5-13 years). Multi-group covariance and means structure analysis was used to establish whether the WISC-R was measurement invariant across sex, and whether sex differences on the level of the…
Descriptors: Foreign Countries, Gender Differences, Preadolescents, Early Adolescents
Dolan, Conor V.; Roorda, Willemijn; Wicherts, Jelte M. – Intelligence, 2004
Spearman's hypothesis states that the differences between Blacks and Whites in psychometric IQ are attributable to a fundamental difference in general intelligence ("g"). To investigate this hypothesis, Jensen devised the method of correlated vectors. This method involves calculating the correlation between the factor loadings of the…
Descriptors: Psychometrics, Intelligence Quotient, Intelligence Differences, Hypothesis Testing
