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Gniewosz, Burkhard; Noack, Peter – Learning and Individual Differences, 2012
The present study investigates the intergenerational transmission of the valuing of math within family. We tested if there are groups of students showing differential intergenerational transmission patterns. Based on a two-wave longitudinal sample of 1198 German fifth graders, their mothers (N = 874), and fathers (N = 733), structural equation…
Descriptors: Group Membership, Mothers, Parent Participation, Academic Achievement
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Hoekstra, Rosa A.; Bartels, Meike; Boomsma, Dorret I. – Learning and Individual Differences, 2007
In a longitudinal genetic study we explored which factors underlie stability in verbal and nonverbal abilities, and the extent to which the association between these abilities becomes stronger as children grow older. Measures of verbal and nonverbal IQ were collected in Dutch twin pairs at age 5, 7, 10, 12 and 18 years. The stability of both…
Descriptors: Twins, Intervals, Structural Equation Models, Intelligence Quotient