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Confirmatory and competitive evaluation of alternative gene-environment interaction hypotheses
- Source :
- Journal of child psychology and psychiatry, and allied disciplines. 54(10)
- Publication Year :
- 2013
-
Abstract
- Background: Most gene-environment interaction (GXE) research, though based on clear, vulnerability-oriented hypotheses, is carried out using exploratory rather than hypothesis-informed statistical tests, limiting power and making formal evaluation of competing GXE propositions difficult. Method: We present and illustrate a new regression technique which affords direct testing of theory-derived predictions, as well as competitive evaluation of alternative diathesis-stress and differential-susceptibility propositions, using data on the moderating effect of DRD4 with regard to the effect of childcare quality on children’s social functioning. Results: Results show that (a) the new approach detects interactions that the traditional one does not; (b) the discerned GXE fit the differentialsusceptibility model better than the diathesis-stress one; and (c) a strong rather than weak version of differential susceptibility is empirically supported. Conclusion: The new method better fits the theoretical ‘glove’ to the empirical ‘hand,’ raising the prospect that some failures to replicate GXE results may derive from standard statistical approaches being less than ideal. Keywords: Gene-environment interaction, diathesis-stress, differential susceptibility, child care, DRD4.
- Subjects :
- Male
Biomedical Research
Adolescent
Genotype
media_common.quotation_subject
Child Behavior Disorders
Statistics
Developmental and Educational Psychology
Humans
Quality (business)
Prospective Studies
Gene–environment interaction
Child Care
Social Behavior
Statistical hypothesis testing
media_common
Child rearing
Receptors, Dopamine D4
Infant
Regression analysis
Differential (mechanical device)
Replicate
Regression
Psychiatry and Mental health
Research Design
Child, Preschool
Pediatrics, Perinatology and Child Health
Female
Gene-Environment Interaction
Psychology
Subjects
Details
- ISSN :
- 14697610
- Volume :
- 54
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- Journal of child psychology and psychiatry, and allied disciplines
- Accession number :
- edsair.doi.dedup.....4a233d7fe2610fadac1fefdba472192d