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- Title
Person-Specific Non-shared Environmental Influences in Intra-individual Variability: A Preliminary Case of Daily School Feelings in Monozygotic Twins.
- Authors
Zheng, Yao; Molenaar, Peter; Arden, Rosalind; Asbury, Kathryn; Almeida, David
- Abstract
Most behavioural genetic studies focus on genetic and environmental influences on inter-individual phenotypic differences at the population level. The growing collection of intensive longitudinal data in social and behavioural science offers a unique opportunity to examine genetic and environmental influences on intra-individual phenotypic variability at the individual level. The current study introduces a novel idiographic approach and one novel method to investigate genetic and environmental influences on intra-individual variability by a simple empirical demonstration. Person-specific non-shared environmental influences on intra-individual variability of daily school feelings were estimated using time series data from twenty-one pairs of monozygotic twins (age = 10 years, 16 female pairs) over two consecutive weeks. Results showed substantial inter-individual heterogeneity in person-specific non-shared environmental influences. The current study represents a first step in investigating environmental influences on intra-individual variability with an idiographic approach, and provides implications for future behavioural genetic studies to examine developmental processes from a microscopic angle.
- Subjects
BEHAVIOR genetics; PHENOTYPIC plasticity; GENOTYPE-environment interaction; ECOLOGICAL genetics; PHENOTYPES
- Publication
Behavior Genetics, 2016, Vol 46, Issue 5, p705
- ISSN
0001-8244
- Publication type
Article
- DOI
10.1007/s10519-016-9789-z