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Direct linkvan 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
Peer reviewedZajonc, R. B.; And Others – American Sociological Review, 1991
Responds to "Birth Order and Intelligence: Further Tests of the Confluence Model" by Robert D. Retherford and William H. Sewell. Reviews their arguments and suggests that their analyses of the Wisconsin Longitudinal Study data support rather than contradict the model. (CJS)
Descriptors: Birth Order, Intelligence Differences, Longitudinal Studies, Mathematical Models
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
Kreft, Ita G. G.; de Leeuw, Jan – 1989
Statistical models for school effectiveness rankings are assessed. An analysis of linear models with fixed regression parameters and models with separate regression parameters for each school is presented. In the first case, the regression lines are parallel and the ranking of the schools is the same for all student backgrounds. In the second…
Descriptors: Elementary Secondary Education, Foreign Countries, Intelligence Differences, Mathematical Models
Peer reviewedPijl, Ysbrand J.; Pijl, Sip J. – International Review of Education/Internationale Zeitschrift fuer Erziehungswissenschaft/Revue Internationale de l'Education, 1998
Synthesize findings from 31 studies on differences between pupils in regular primary education and those in special education in the Netherlands to determine whether the number of special-education placements can be reduced. Finds that pupils in regular education and special education differ in achievement and general intelligence. Contains 29…
Descriptors: Academic Achievement, Educational Needs, Educationally Disadvantaged, Foreign Countries
Peer reviewedRetherford, Robert D.; Sewell, William H. – American Sociological Review, 1991
Confluence theory was developed to explain the negative effects of birth order on intelligence. Using aggregate, between-family, within-family, and paired-sibling data from the Wisconsin Longitudinal Study, tests the mathematical form of confluence theory and finds no support for it. Suggests that statistical methods used to fit the model to the…
Descriptors: Birth Order, Goodness of Fit, Intelligence Differences, Intelligence Quotient
Download full textLuyten, Hans; Van der Hoeven-van Doornum, Anneke – 1994
This study investigated the effects of classroom composition on achievement. The analysis focused on the assessment of classroom homogeneity with respect to the socioeconomic background and general intelligence of the students. In addition, the extent to which classroom composition affects the standards the teachers employ and how these standards…
Descriptors: Ability Grouping, Academic Achievement, Classroom Environment, Elementary Education
