Skip to main content
padlock icon - secure page this page is secure

The role of the Children of Twins design in elucidating causal relations between parent characteristics and child outcomes

Buy Article:

$59.00 + tax (Refund Policy)

Background:

Determination of causal connections between parental measures and child outcomes using typical samples is limited by the inability to account for all confounds, both environmental and genetic. This paper discusses the strength of the Children of Twins (COT) design to highlight the role of specific environments. Methods:

A new analytical model is presented which helps differentiate and quantify the environmental and genetic processes underlying associations between family-level risk factors and child adjustment. In order to illustrate the COT design, the relation between smoking during pregnancy and child birth weight (BW) is examined in a sample of female twins and their children from Norway and the United States. Results:

The results illustrate that smoking during pregnancy is influenced by genetic factors. However, the Children of Twins model supports the claim that smoking during pregnancy has a direct environmental influence on BW and that genetic and shared environmental confounds cannot account for the association. Conclusions:

An assessment of the strengths and limitations of the Children of Twins design and a comparison with other research strategies suggest that the design plays a unique role in the study of developmental psychology and psychopathology. Finally, the authors describe how methodological advances and future applications of the design will provide additional insight into the causal processes underlying children's adjustment to environmental stimuli.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Keywords: Children of twins; birth weight; gene–environment correlation; parenting; smoking

Document Type: Research Article

Affiliations: 1: University of Virginia, USA 2: Virginia Commonwealth University, USA 3: University of Oslo, Norway

Publication date: November 1, 2003

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more