Expansion of Childhood Relationship Study to Young Adult Romantic Relationships

Background: \- An earlier study on child development focused on the relationship between children and their caregivers (usually mothers). It looked at how this relationship influenced children's social and mental development. It also studied how these children related with family members and friends. Researchers are now interested in expanding the study with the same group of children. They want to look at these children, who are now young adults, and focus on their current romantic relationships. This new study will look at how child development affects the formation of stable, mature romantic relationships in young adulthood. Original child study participants and their significant others will be included in the new study. Only participants who are living together with a partner will be studied. Objectives: \- To look at romantic partnerships in a childhood study s original participants and their significant others. Eligibility: * Participants of the 88-CH-32 study who are at least 18 years of age. * Significant others of the study participants who are at least 18 years of age. * Original participants and significant others must be cohabiting (living together). Design: * No screening tests will be required for this study. No study visits will be needed. Samples will not be collected. * Original study participants will fill out four online questionnaires. They will be on a National Institute of Child Health and Human Development (NICHHD) website. They will ask personal questions about relationships with the current romantic partner and other important people. The questions will take about 25 minutes to answer. * Significant others will fill out 13 online questionnaires. They will be on a NICHHD website. They will ask personal questions about the romantic partner and other important people. The questions will take about 1.5 hours to answer. * All participants will receive a small amount of money for completing the study.

* INCLUSION AND EXCLUSION CRITERIA: Among the young adult target children from study 88-CH-32 (N = 250), those with significant others are eligible to participate in this study, as are their significant others. However if a target child s significant other is a minor (i.e., under the age of 18), that significant other will not be eligible to participate.