This article reports a meta-analysis of 28 studies examining the health-related outcomes associated with participation in a formal computer-mediated support group (CMSG) intervention. In particular, health outcomes related to social support were assessed and four group-level characteristics of CMSGs were tested as potential moderators of intervention effectiveness. The results show that participating in a CMSG intervention-comprised of educational and group communication components-led to increased social support, decreased depression, increased quality of life, and increased self-efficacy to manage one's health condition. Changes in health outcomes were moderated by group size, the nature of the communication channels available, and the duration of the CMSG intervention.

This study examines conflict among heterosexual mixed-weight (i.e., one overweight and one healthy weight partner) and matched-weight couples (N ¼ 43 couples). Participant sex, eating together, partner health support, and negative partner influence were examined as moderators of the association between weight status and conflict. Using dyadic models, we found that mixed-weight couples, specifically couples including overweight women and healthy weight men, reported greater conflict both generally and on a daily basis, compared to matched-weight couples; however, general conflict was reduced with greater perceived support from the partner. Mixed-weight couples who reported eating together more frequently also reported greater general conflict. These findings suggest that mixed-weight couples may experience more conflict than matched-weight couples, but perceived support from the partner can buffer this conflict. This research suggests that interpersonal dynamics associated with mixed-weight status might be important for romantic partners' relational and personal health.

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To understand the association between sexual transformations (i.e., changes in sexual behavior for the partner), intimate behaviors, and relationship quality among couples in romantic relationships, this study used Actor Partner Interdependence Models to examine frequency of sexual transformations, feelings about sexual transformations, and intimate behaviors as predictors of relationship satisfaction among 96 couples (N = 192). Sexual transformations were also examined as a moderator of the association between intimate behavior and relationship satisfaction. Results indicated that relationship satisfaction was positively associated with partners' frequent sexual transformations, actors' positive feelings about sexual transformations, and intimate behavior from the partner. Further, in less intimate relationships, relationship satisfaction was greater when partners reported making more sexual transformations.

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