Identity formation is a key developmental task in adolescence. Although many adolescents in modern societies face issues of identity, there are substantial individual differences in identity exploration and commitment. Little is known about the origins of these individual differences. The current study investigated the genetic and environmental…

To avoid reduction in observational data resulting from correlational techniques for analyzing interpersonal interactions, a data-transformation method based on multidimensional scaling techniques was applied to the Family Interaction Coding System. Two resulting dimensions, prosocial-deviance and high-low involvement, were applied to observations…