摘要: Numerous studies show that early marriage increases marital instability; more recent late marriages also appear to be less stable. This paper examines 3 alternatives: 1) how the effect of timing may mediated by adequacy role performance 2) availability alternatives relationship and 3) external pressures on married pair. Using a 1980 national sample 1715 people under age 55 study compared dependent variable instability with independent at intervening variables--aspects spouses troublesome behaviors self spouse perceived ability manage in case divorce barriers parent-spouse relations sharing friends. Multiple classification analysis shows is highest for those who marry scoring somewhat lower. While only explanation considered reaches significance it does not totally account association between instability. The authors suggest influences very different ways. In teenage best accounts lack sexual exclusiveness. problem coincides peak interest especially among men hinting this have biosocial origin. Perhaps individuals limit their partners 1 when variety high develop pattern acting out impulses thoughout lives. Interpreting difficult. Late marriers marrying quite from themselves because they fewer choices. Late-marrying males tended women considerably younger better educated than themselves. These background differences could an important reason