The influence of family unions and parenthood transitions on self-development.

The present study discusses the impact of union and parenthood transitions on individuals' self-esteem and sense of mastery development from midadolescence to young adulthood by using multilevel analyses with longitudinal data of 7,339 individuals between ages 15 and 38. The results show that, first, individuals in marital unions show significantly greater rates of growth in self-esteem and sense of mastery, compared with singles. Therefore, entering into marriage provides greater protections to individuals' self-esteem and sense of mastery. Second, the transition to parenthood brings significant decreases in levels and increases in rates of change in self-esteem and sense of mastery among new parents. The degree of the aforementioned changes differs by new parents' gender, union status, and living arrangement with the child at childbirth. Women are influenced more negatively than men. Living with the child at childbirth reduces the degree of decreases in self-esteem and sense of mastery, especially for mothers. In sum, from midadolescence to young adulthood, the development of individuals' self-esteem and sense of mastery is shaped by their union and parenthood transitions. Moreover, the context where these transitions take place, including the type of union and the living arrangement, moderates the degree of the impact. Our findings have important implications for research and practice in promoting the family transition experience. (c) 2016 APA, all rights reserved).