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Addressing a previous gap in the gerontological literature, the present study examined the effects of both positive and negative social exchanges within key relationships (spouse, children, and other relatives/friends) on the depressive symptoms of younger (28 to 59 years old) and older (60 to 92 years old) men and women. Separate analyses were carried out on younger adults (N = 452) and older adults (N = 849) who were respondents in the Americans' Changing Lives study. In both age groups, positive and negative social exchanges with the same source were significantly (p < .001), inversely related (rs range from -.23 to -.43); and positive social exchanges exerted stronger net effects on depressive symptoms than negative social exchanges. For older adults, some buffering effects were found when negative and positive social exchanges were associated with different sources; for younger adults, buffering effects were found when negative and positive social exchanges were associated with the same source. These buffering effects were not conditioned by gender. The findings of the present study highlight the importance of taking into account the age of the recipient and the provider-recipient relationship when studying the joint influence of negative and positive social exchanges on adults' depressive symptoms.

How racial identity influences self-esteem and psychological well-being among African Americans remains unresolved due to unexplained inconsistencies in theoretical predictions and empirical findings. Using data from the National Survey of American Life (N = 3,570), we tested hypotheses derived from social identity theory and the internalized racism perspective. Findings support social identity theory in showing that African Americans strongly identify with their group and view it very positively. In addition, those who identify more with their group and evaluate it more positively have greater self-esteem, greater mastery, and fewer depressive symptoms. However, findings also support the internalized racism perspective by showing that when group evaluation is relatively negative, racial identification is related to lower mastery and higher depressive symptoms. We conclude that both social identity theory and the internalized racism perspective are necessary for understanding how racial identity is related to self-attitudes and mental health among African Americans.

Previous studies have demonstrated that acculturation is associated with negative birth outcomes among mothers in numerous immigrant populations, including Latinas. This study used structural equation models to reanalyze data employed in the 1989 Scribner and Dwyer study on the effect of acculturation (measured through the Cuellar scale) on mothers' low-birthweight status. Data revealed that language components dominate the effects of acculturation on low-birthweight status. Acculturuation appears to affect low-birthweight status indirectly through smoking and dietary intake but not through parity. Acculturation has a persistent direct effect on low-birthweight status, suggesting that other intervening variables are operant.

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