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Source: Journal of Child Psychology and Psychiatry
Resulting in 2 citations.
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D'Onofrio, Brian M. Goodnight, Jackson A. Van Hulle, Carol A. Rodgers, Joseph Lee Rathouz, Paul J. Waldman, Irwin D. Lahey, Benjamin B. |
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Maternal Age at Childbirth and Offspring Disruptive Behaviors: Testing the Causal Hypothesis Journal of Child Psychology and Psychiatry 50,8 (August 2009): 1018-1028. Also: http://onlinelibrary.wiley.com/doi/10.1111/j.1469-7610.2009.02068.x/full Cohort(s): Children of the NLSY79 Publisher: Blackwell Publishing, Inc. => Wiley Online Keyword(s): Age at Birth; Behavior Problems Index (BPI); Child Self-Administered Supplement (CSAS); Children, Behavioral Development; Delinquency/Gang Activity; Siblings Recent studies suggest that the association between Background: maternal age at childbearing (MAC) and children's disruptive behaviors is the result of family factors that are confounded with both variables, rather than a casual effect of environmental factors specifically related to MAC. These studies, however, relied on restricted samples and did not use the strongest approach to test causal influences. Using data on 9,171 4–9-year-old and 6,592 10–13-year-old Methods: offspring of women from a nationally representative sample of US households, we conducted sibling-comparison analyses. The analyses ruled out all genetic factors that could confound the association, as well as all environmental confounds that differ between unrelated nuclear families, providing a strong test of the causal hypothesis that the environments of children born at different maternal ages influence mother- and self-reported disruptive behaviors. When these genetic and environmental confounds were ruled out Results: as alternative explanations, the relation between environments within nuclear families specifically associated with MAC and disruptive behaviors was robust, with the association being stronger for second- and third-born children. Environmental factors specifically associated with early Conclusions: MAC within nuclear families account for increased risk of offspring disruptive behaviors, especially in later-born children. |
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Bibliography Citation
D'Onofrio, Brian M., Jackson A. Goodnight, Carol A. Van Hulle, Joseph Lee Rodgers, Paul J. Rathouz, Irwin D. Waldman and Benjamin B. Lahey. "Maternal Age at Childbirth and Offspring Disruptive Behaviors: Testing the Causal Hypothesis." Journal of Child Psychology and Psychiatry 50,8 (August 2009): 1018-1028.
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van den Oord, Edwin J. C. G. Pickles, Andrew Waldman, Irwin D. |
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Normal Variation and Abnormality: An Empirical Study of the Liability Distributions Underlying Depression and Delinquency Journal of Child Psychology and Psychiatry 44,2 (February 2003): 180–192. Also: http://www.blackwell-synergy.com/doi/full/10.1111/1469-7610.00113 Cohort(s): Children of the NLSY79 Publisher: Blackwell Publishing, Inc. => Wiley Online Keyword(s): Behavior Problems Index (BPI); Delinquency/Gang Activity; Depression (see also CESD); National Longitudinal Study of Adolescent Health (AddHealth); Scale Construction Background: Scale scores in studies of emotional and behavioural problems often possess highly skewed distributions. The long upper tails of these distributions place a small proportion of the population at some distance from the main body of the distribution. This invites an interpretation of their forming an abnormal group, one that may be qualitatively distinct. Methods: Item-response models were fitted to data on parent and self-rated depression and delinquency from four large samples of children or adolescents. Results: We found that underlying liability distributions show very little or no evidence of non-normality. Conclusions: The results suggest that (i) the skewed nature of the scale scores may be largely measurement artefacts, (ii) the distributions provide no evidence of a qualitatively distinct process generating abnormality as compared to normal variation and (iii) for characterising the whole distribution, including normality and abnormality, the selection of items in typical current assessments of emotional and behavioural problems is not optimal. |
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Bibliography Citation
van den Oord, Edwin J. C. G., Andrew Pickles and Irwin D. Waldman. "Normal Variation and Abnormality: An Empirical Study of the Liability Distributions Underlying Depression and Delinquency." Journal of Child Psychology and Psychiatry 44,2 (February 2003): 180–192. A.
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