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Positive peer and romantic relationships are crucial for adolescents' positive adjustment and relationships with parents lay the foundation for these relationships. This longitudinal meta-analysis examined how parent–adolescent relationships continue into later peer and romantic relationships. Included longitudinal studies (k = 54 involving peer relationships, k = 38 involving romantic relationships) contained demographically diverse samples from predominantly Western cultural contexts. Multilevel meta-regressions indicated that supportive and negative parent–adolescent relationships were associated with supportive and negative future peer and romantic relationships. Meta-analytic structural equation modeling (k = 54) indicated that supportive parent–adolescent relationships unidirectionally predicted supportive and negative peer relationships, while negative parent–adolescent relationships were bidirectionally associated with supportive and negative peer relationships. Maintaining mutually supportive relationships with parents may help adolescents to develop positive social relationships.

This 8-wave person-centered multi-informant study tested whether the quality of parent-adolescent relationships predicted the romantic experiences of young adults and their partners (N = 374; 54.8% girls; Mage = 13.08 years, SDage = 0.48 at the first measurement wave). Perceptions of parent-adolescent relationships were assessed using adolescent, mother, and father reports. Results show that both young adults and their partners reported the highest levels of support, intimacy, and passion when young adults had an authoritative relationship quality with their parents. A distant parent-adolescent relationship quality, however, predicted the lowest support, intimacy, and passion in romantic relationships. Interestingly, the association between parent-adolescent relationships with the experience of young adults' romantic partners was indirect. Parent-adolescent relationships predicted target young adults' romantic relationship experiences, which predicted partners' romantic relationship experiences. Parent-child relationship quality therefore has far-reaching, yet subtle, effects on later romantic relationships, affecting both young adults and their partners.

Developmental changes in adolescents’ relationships with parents and friends intertwine, but individual differences in these relationships are likely to emerge as not all adolescents develop similarly. Generalized anxiety symptoms may underlie these individual differences, as these symptoms have frequently been associated with interpersonal difficulties. This study examines relationship quality development with parents and friends in adolescents with low and high levels of generalized anxiety symptoms. A latent transition analysis was performed in a two-cohort five-wave study design covering ages 12 to 16 (n = 923, 50.8% males) and 16 to 20 (n = 390, 43.4% males). About one-third of adolescents with high levels of generalized anxiety symptoms perceived a turbulent relationship with both their parents and best friends, whereas only one-tenth of those with low levels of generalized anxiety symptoms did. Low levels as opposed to high levels of generalized anxiety symptoms predicted a twice as high likelihood to perceive harmonious relationships with both their parents and best friends. Nevertheless, adolescents with low and high levels of generalized anxiety symptoms exhibited similar trends in relationship development. Overall, our findings indicate that generalized anxiety symptoms are not deterministic markers for relationship difficulties as there were plenty of adolescents with high levels of generalized anxiety symptoms that experienced no relationship difficulties across adolescence.

The separation-individuation, evolutionary, maturational, and expectancy violation-realignment perspectives propose that the relationship between parents and adolescents deteriorate as adolescents become independent. This study examines the extent to which the development of adolescents’ perceived relationship with their parents is consistent with the four perspectives. A latent transition analysis was performed in a two-cohort five-wave longitudinal study design covering ages 12–16 (n = 919, 49.2% female) and 16–20 (n = 392, 56.6% female). Generally, from 12 to 16 year adolescents moved away from parental authority and perceived increasing conflicts with their parents, whereas from 16 to 20 years adolescents perceived independence and improved their relationships with parents. Hereby, we also identified substantial patterns of individual differences. Together, these general and individual patterns provide fine-grained insights in relationship quality development.

Person-centred approaches classify individuals with similar attributes in the same group and describe differences between these groups of individuals. However, these approaches are scarcely used, partly due to their low predictive power. This study aimed to overcome previous limitations using an adjusted person-centred procedure to identify a reliable and valid parent–adolescent typology and demonstrate the value of an adjusted approach. Adolescents (N = 2281, 49% males, Mage = 14.35, SDage = 2.33) completed self-reports regarding relationship quality, psychopathology and personality. Harmonious, average, turbulent and detached relationship types were identified and replicated. These types showed external validity, as they displayed distinctive patterns in psychopathology and personality. The adjusted procedure clearly increased predictive power, as it explained more variance in outcomes when compared to the standard procedure. This study contributes to adolescent research by identifying a reliable and valid parent–adolescent relationship typology and demonstrating the value of an adjusted person-centred approach.

BACKGROUND Alcohol misuse ranks within the top ten health conditions with the highest global burden of disease. Low-intensity, Internet interventions for curbing adult alcohol misuse have been shown effective. Few meta-analyses have been carried out, however, and they have involved small numbers of studies, lacked indicators of drinking within low risk guidelines, and examined the effectiveness of unguided self-help only. We therefore conducted a more thorough meta-analysis that included both guided and unguided interventions. METHODS Systematic literature searches were performed up to September 2013. Primary outcome was the mean level of alcohol consumption and drinking within low risk guidelines for alcohol consumption at post-treatment. FINDINGS We selected 16 randomised controlled trials (with 23 comparisons and 5,612 participants) for inclusion. Results, showed a small but significant overall effect size in favour of Internet interventions (g = 0.20, 95% CI: 0.13-0.27, p<.001). Participants in Internet interventions drunk on average 22 grams of ethanol less than controls and were significantly more likely to be adhering to low-risk drinking guidelines at post-treatment (RD 0.13, 95% CI: 0.09-0.17, p<.001). Subgroup analyses revealed no significant differences in potential moderators for the outcome of alcohol consumption, although there was a near-significant difference between comparisons with waitlist control and those with assessment-only or alcohol information control conditions (p = .056). CONCLUSIONS Internet interventions are effective in reducing adult alcohol consumption and inducing alcohol users to adhere to guidelines for low-risk drinking. This effect is small but from a public health point of view this may warrant large scale implementation at low cost of Internet interventions for adult alcohol misuse. Moderator analyses with sufficient power are, however, needed in order to assess the robustness of these overall results and to assess whether the

Background Alcohol misuse ranks within the top ten health conditions with the highest global burden of disease. Low-intensity, Internet interventions for curbing adult alcohol misuse have been shown effective. Few meta-analyses have been carried out, however, and they have involved small numbers of studies, lacked indicators of drinking within low risk guidelines, and examined the effectiveness of unguided self-help only. We therefore conducted a more thorough meta-analysis that included both guided and unguided interventions. Methods Systematic literature searches were performed up to September 2013. Primary outcome was the mean level of alcohol consumption and drinking within low risk guidelines for alcohol consumption at post-treatment. Findings We selected 16 randomised controlled trials (with 23 comparisons and 5,612 participants) for inclusion. Results, showed a small but significant overall effect size in favour of Internet interventions (g = 0.20, 95% CI: 0.13–0.27, p<.001). Participants in Internet interventions drunk on average 22 grams of ethanol less than controls and were significantly more likely to be adhering to low-risk drinking guidelines at post-treatment (RD 0.13, 95% CI: 0.09–0.17, p<.001). Subgroup analyses revealed no significant differences in potential moderators for the outcome of alcohol consumption, although there was a near-significant difference between comparisons with waitlist control and those with assessment-only or alcohol information control conditions (p = .056). Conclusions Internet interventions are effective in reducing adult alcohol consumption and inducing alcohol users to adhere to guidelines for low-risk drinking. This effect is small but from a public health point of view this may warrant large scale implementation at low cost of Internet interventions for adult alcohol misuse. Moderator analyses with sufficient power are, however, needed in order to assess the robustness of these overall