Doctor of Philosophy, The Ohio State University, 2011, Sociology
While population increases have long been the concern of demographers, today, significant decline in fertility is a new concern. Despite the many implications of fertility decline on society, politics, and economics, most discussion has focused on its causes rather than its consequences. This study contributes to prior literature by examining the relationship between sibship size and social skills among children, and then social capital among adults.
First, using fifth and eighth grade data from the Early Childhood Longitudinal Study- Kindergarten Cohort (ECLS-K), I empirically test the relationship between sibship size and children's social skills. I find that teachers rate children who have no siblings as having poorer interpersonal skills, worse self-control, and more externalizing problem behaviors than those who have one sibling. This relationship, however, exists only among fifth graders; the evidence that having at least one sibling is beneficial disappears among eighth graders.
In the second part of the dissertation, I propose a new theoretical framework that predicts a link between sibship size and social capital. Using General Social Survey (GSS) data, I also test the relationship between sibship size and generalized trust and participation in voluntary associations among adults. I find that there is only a modest, negative relationship between sibship size and both dimensions, but only for adults who have at least five siblings. Additionally, I note that social network composition does not mediate the main relationship, and that it does not vary across birth cohorts. The findings of this dissertation have implications for the literature and research that seeks to understand better the consequences of decline in sibship size.
Committee: Douglas B. Downey PhD (Committee Chair); Edward Crenshaw PhD (Committee Member); John Casterline PhD (Committee Member)
Subjects: Sociology