<p>Using a mix of quantitative and qualitative measures, the current study examines how jealousy is experienced and expressed in close peer relationships during emerging adulthood. 193 college student participants (94 males, 99 females) described actual jealousy experiences, answered questions from a newly developed jealousy questionnaire, and completed questionnaires assessing individual characteristics. To better understand the phenomenon of jealousy, descriptive data are presented regarding a variety of jealousy features. An interest in the role of gender and relationship context prompted an examination of the association between gender, relationship context, and jealousy variables. Additionally, a number of hypotheses are tested regarding factors that affect jealousy intensity and frequency. Results suggest jealousy experiences during college are normative and similarly experienced by males and females. However, friendship jealousy has qualities that differ markedly from romantic relationship jealousy. Implications of these findings are discussed. Study limitations and ideas for future research are also addressed.</p> / Dissertation