title: The Evolution of Interaction Shape in Differential Susceptibility.
abstract: Expectations about the shape of statistical interactions play a crucial role in the study of differential susceptibility and other types of person-environment interplay. These expectations shape methodological guidelines and inform the interpretation of empirical findings; however, their logic has never been explicitly examined. This study is the first systematic exploration of the evolution of interaction shape in differential susceptibility. The model introduced here yields a number of novel insights; for example, interactions in differential susceptibility should usually be asymmetric and likely to be biased toward the prototypical shape of diathesis-stress models. This article also presents an exploratory analysis of interaction shape in recent empirical studies and ends with a discussion of the theoretical and methodological implications of the present findings.
authors.affiliation: University of New Mexico.
authors.forename: Marco
authors.initials: M
authors.lastname: Del Giudice
mesh_terms: D003627:Data Interpretation, Statistical; D059647:Gene-Environment Interaction; D006803:Human Development; D006801:Humans; D008960:Models, Psychological; D012931:Social Environment