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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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Schoppe-Sullivan, Sarah J.; Mangelsdorf, Sarah C. – Social Development, 2013
This study examined parent characteristics as correlates of coparenting behavior in 57 primiparous couples. Parents' negative emotionality and perceptions of maternal acceptance in childhood, mothers' beliefs about fathers' roles, and observed marital behavior and family socioeconomic status were assessed during the third trimester of pregnancy,…
Descriptors: Child Rearing, Parenting Styles, Parent Attitudes, Mothers
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Ackerman, Phillip L.; Kanfer, Ruth; Beier, Margaret E. – Journal of Educational Psychology, 2013
Prediction of academic success at postsecondary institutions is an enduring issue for educational psychology. Traditional measures of high-school grade point average and high-stakes entrance examinations are valid predictors, especially of 1st-year college grades, yet a large amount of individual-differences variance remains unaccounted for.…
Descriptors: Cognitive Ability, Gender Differences, Academic Achievement, Educational Psychology