Genetic analyses of focal aspects of infant temperament.

Goldsmith, H. H., Lemery, Kathryn S., Buss, Kristin A., Campos, Joseph J.·1999·Developmental Psychology
DOI 10.1037//0012-1649.35.4.972

Abstract

The authors explored the genetic and environmental underpinnings of individual differences in temperament with a sample of 604 3- to 16-month-old infant twins and their parents. Mothers completed Rothbart's Infant Behavior Questionnaire (IBQ), and a subsample of 140 9-month-old twins participated in behavioral assessment of temperament in the laboratory as well. For IBQ Smiling and Laughter and Duration of Orienting, both additive genetic and shared environmental effects were needed to best represent the data. Shared environmental effects fully accounted for cotwin similarity for IBQ Soothability, and conversely, additive genetic effects fully accounted for cotwin similarity for the IBQ Distress to Limitations, Distress to Novelty, and Activity Level scales. With the subsample, the authors fit a multivariate model to mother report, father report, and lab measures of stranger distress and found that genetic influences were most important for the covariation among these measures.

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CoChat. (2026). Citation check: Genetic analyses of focal aspects of infant temperament. https://app.cochat.ai/papers/10.1037//0012-1649.35.4.972
The paper
Goldsmith, H. H., Lemery, K. S., Buss, K. A., & Campos, J. J. (1999). Genetic analyses of focal aspects of infant temperament. Developmental Psychology. https://doi.org/10.1037//0012-1649.35.4.972

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