A Prospective Longitudinal Study of Marriage from Midlife to Later Life.

This prospective longitudinal study explores the relationship between marital functioning at midlife and in later life as measured by global coding of marital interaction process. Couples participated in home interviews at midlife, then again 25 years later. During home interviews at both waves couples completed a questionnaire describing their family, then discussed differences of opinion about the family. Marital system variables were coded by trained coders from taped discussions. Coded measures of the marital interaction supported a relationship between midlife and later life marriage. Connection at midlife was positively related to warmth/support and clear interpersonal boundaries in later life; more connection at midlife was also related to less depression in later life. More individuation at midlife was associated with less conflict in later life. Evidence was also found for enhanced marital functioning in later life: more warmth/support, clearer interpersonal boundaries, more comfort with differences, and less covert conflict.