Psychology Commons^™

A Genetically-Informed Study Of The Predictors And The Development Of Delinquency, Albert J. Ksinan

Theses and Dissertations--Family Sciences

Although the rates of delinquent behavior have been decreasing since the 1990s, adolescent delinquent behavior continues to take a great toll on society as well as on perpetrators themselves. In this way, it is essential to understand the process of delinquency development. The current dissertation is comprised of three studies that analyzed the predictors and the development of delinquency using genetically-informed designs. The sample used for all studies comes from the Add Health dataset, a nationally-representative data on adolescents followed across 14 years.

The first study modeled the longitudinal development of delinquency in three adolescent cohorts: early, middle, and late …

Longitudinal Associations Between Sleep Functioning And Adolescent Adjustment, Gabriela Ksinan Jiskrova

Theses and Dissertations--Family Sciences

The current dissertation consists of three interrelated studies examining the relationship between sleep functioning and adolescent adjustment. Although links between sleep patterns and internalizing problems and externalizing or problem behaviors in children and adolescents have been established in literature, several gaps remain in this research. This dissertation addressed these by: (a) testing sleep problems, quantity, and chronotype in childhood as predictors of internalizing problems in adolescence (Study 1), (b) testing sleep problems, quantity, and chronotype in childhood as predictors of problem behaviors in adolescence (Study 2), and (c) testing sleep problems and quantity as mediators of the chronotype-adjustment link (Study …