Today's Adolescents Are More Satisfied With Being Single: Findings From a German Cohort-Sequential Study Among 14- to 40-Year-Olds.

In Western societies, singlehood has become increasingly normative over historical time. But whether singles are more satisfied nowadays remains unclear. In this preregistered cohort-sequential study, we analyzed data from 2,936 German participants (M = 21.01 years, SD = 7.60 years) from different birth cohorts. Singlehood satisfaction and life satisfaction were reported annually at two different time periods (2008-2011 and 2018-2021). This design allowed us to compare earlier-born and later-born singles during adolescence (14-20 years), emerging adulthood (24-30 years), and established adulthood (34-40 years). Results from multilevel growth-curve models indicated that adolescent singles born in 2001 to 2003 (vs. 1991-1993) were more often single and more satisfied with singlehood. No cohort-related differences emerged among emerging and established adults. Younger age and lower neuroticism predicted higher satisfaction, regardless of birth cohort. The results highlight the importance of considering both societal and individual factors to understand singles' satisfaction.

How relationship satisfaction changes within and across romantic relationships: Evidence from a large longitudinal study.

Research suggests that relationship satisfaction changes in systematic ways over the course of a relationship. In this preregistered study, we tested whether relationship satisfaction changes differently as a function of the eventual outcome of the relationship, that is, whether the relationship lasted, whether it was dissolved, and whether people began a new relationship after separation. Data came from a large longitudinal study (the Longitudinal Study of Generations), including 2,268 participants aged 16-90 years, who were assessed at up to seven waves across 20 years. We used multilevel models to examine change in relationship satisfaction within relationships (i.e., comparing continuing and dissolving relationships) and across relationships (i.e., comparing consecutive relationships of the same persons). The results indicated that satisfaction in dissolving (vs. continuing) relationships was lower and showed a more pronounced decrease over the course of the relationship. Individuals who began a new relationship after separation were more satisfied at the beginning of the new relationship compared to the beginning of the previous relationship. However, satisfaction declined within both relationships (i.e., the previous and the new relationship). Moderator analyses indicated that relationship satisfaction decreased more strongly when participants had children, were in a dissolving relationship of briefer duration, and when the time lag between the previous and current relationship had been shorter. Overall, the findings contribute to understanding change in satisfaction within and across relationships. The Discussion addresses the possibility that couples tend to separate when relationship satisfaction falls below a critical value. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

A developmental perspective on personality-relationship transactions: Evidence from three nationally representative samples.

OBJECTIVE: Throughout their lives, people experience different relationship events, such as beginning or dissolving a romantic relationship. Personality traits predict the occurrence of such relationship events (i.e., selection effects), and relationship events predict changes in personality traits (i.e., socialization effects), summarized as personality-relationship transactions. So far, evidence was partly inconsistent as to how personality traits and relationship events are linked with each other. In this article, we argue that unnoticed age differences might have led to these inconsistencies. To systematically test for age differences in transactions, we conceptualize relationship events in terms of gains and losses and apply a developmental perspective on transactions. METHODS: Using longitudinal data from three nationally representative samples (SOEP, HILDA, Understanding Society), we computed event-focused latent growth models and summarized the results meta-analytically. RESULTS: The findings indicated some transactions. Of these, selection effects were stronger than socialization effects, and effects of gain-based events were stronger than effects of loss-based events. We observed few interactions with age. CONCLUSION: Selection effects and, particularly, socialization effects, tend to be rare and fairly independent of age. We discuss a series of broader and narrower factors that may have an impact on the strength of transactions across adulthood.

Rank-order stability of relationship satisfaction: A meta-analysis of longitudinal studies.

Satisfaction with a romantic relationship often changes over time, and individuals differ in how satisfied they are in their relationship. However, no systematic review is available regarding the stability of individual differences in relationship satisfaction. Therefore, this meta-analysis synthesizes the available longitudinal data on rank-order stability of relationship satisfaction, as a function of age and relationship duration. Analyses were based on 148 samples including 153,396 participants reporting on their relationship over time. Mean age associated with the effect sizes ranged from 19 to 71 years, and mean relationship duration from 3 months to 46 years. On average, individual differences in relationship satisfaction were highly stable over time (r = .76, corrected for attenuation due to measurement error and based on an average time lag of 2.30 years). Rank-order stability varied systematically as a function of age, increasing from young to late adulthood with a slight decline during middle adulthood. Rank-order stability also varied as a function of relationship duration, increasing over the course of the relationship with a slight decline around 20 years of relationship duration. Moderator analyses suggested that relationship transitions shortly before Time 1 and sample type explained variance in rank-order stability. However, except for these two moderators, the pattern of findings was robust across all characteristics tested. In sum, this meta-analysis indicates that relationship satisfaction is a relatively stable construct, with lower stabilities in young adulthood and in the first years after beginning a relationship. This knowledge may stimulate future research on developmental processes within romantic relationships. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Effect size guidelines for cross-lagged effects.

Cross-lagged models are by far the most commonly used method to test the prospective effect of one construct on another, yet there are no guidelines for interpreting the size of cross-lagged effects. This research aims to establish empirical benchmarks for cross-lagged effects, focusing on the cross-lagged panel model (CLPM) and the random intercept cross-lagged panel model (RI-CLPM). We drew a quasirepresentative sample of studies published in four subfields of psychology (i.e., developmental, social-personality, clinical, and industrial-organizational). The dataset included 1,028 effect sizes for the CLPM and 302 effect sizes for the RI-CLPM, based on data from 174 samples. For the CLPM, the 25th, 50th, and 75th percentiles of the distribution corresponded to cross-lagged effect sizes of .03, .07, and .12, respectively. For the RI-CLPM, the corresponding values were .02, .05, and .11. Effect sizes did not differ significantly between the CLPM and RI-CLPM. Moreover, effect sizes did not differ significantly across subfields and were not moderated by design characteristics. However, effect sizes were moderated by the concurrent correlation between the constructs and the stability of the predictor. Based on the findings, we propose to use .03 (small effect), .07 (medium effect), and .12 (large effect) as benchmark values when interpreting the size of cross-lagged effects, for both the CLPM and RI-CLPM. In addition to aiding in the interpretation of results, the present findings will help researchers plan studies by providing information needed to conduct power analyses and estimate minimally required sample sizes. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Within-Couple Associations Between Communication and Relationship Satisfaction Over Time.

Relationship science contends that the quality of couples' communication predicts relationship satisfaction over time. Most studies testing these links have examined between-person associations, yet couple dynamics are also theorized at the within-person level: For a given couple, worsened communication is presumed to predict deteriorations in future relationship satisfaction. We examined within-couple associations between satisfaction and communication in three longitudinal studies. Across studies, there were some lagged within-person links between deviations in negative communication to future changes in satisfaction (and vice versa). But the most robust finding was for concurrent within-person associations between negative communication and satisfaction: At times when couples experienced less negative communication than usual, they were also more satisfied with their relationship than was typical. Positive communication was rarely associated with relationship satisfaction at the within-person level. These findings indicate that within-person changes in negative communication primarily covary with, rather than predict, relationship satisfaction.

Development of relationship satisfaction across the life span: A systematic review and meta-analysis.

Previous research has not led to any agreement as to the normative trajectory of relationship satisfaction. In this systematic review and meta-analysis, we summarize the available evidence on development of relationship satisfaction, as a function of age and relationship duration. Data came from 165 independent samples including 165,039 participants. In the analyses, we examined cross-sectional information on mean level, that is, the percent-of-maximum-possible (POMP) score at the first assessment, and longitudinal information on mean change (i.e., change in POMP scores per year). The mean age associated with effect sizes ranged from 20 to 76 years and the mean relationship duration from 3 months to 46 years. Results on mean levels indicated that relationship satisfaction decreased from age 20 to 40, reached a low point at age 40, then increased until age 65, and plateaued in late adulthood. As regards the metric of relationship duration, relationship satisfaction decreased during the first 10 years of the relationship, reached a low point at 10 years, increased until 20 years, and then decreased again. Results on mean change indicated that relationship satisfaction decreased within a given relationship, with the largest declines in young adulthood and in the first years of a relationship. Moderator analyses suggested that presence of children and measure of relationship satisfaction explained variance in the mean level. Except for these two moderators, the pattern of findings held across characteristics such as birth cohort, sample type, country, ethnicity, gender, household shared with partner, marital status, relationship transitions, and dyadic data. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Sociohistorical context and adult social development: New directions for 21st century research.

To date, most explanations of adult social development within the field of psychology assume universal age-related processes. The majority of these explanations, however, stem from studies on a limited number of cohorts that were socialized in specific social contexts. As a consequence, the current knowledge on adult social development confounds age-related and contextual influences. We argue that it is essential to disentangle these influences to better understand adult social development. In this article, we apply the theoretical framework of developmental contextualism and provide explanations for adult social development that are firmly based on the sociohistorical context that a cohort experienced during young adulthood. This hypothesis is discussed with the example of romantic relationships. We argue that the relatively strong value that today's older adults ascribe to close social ties might be rooted in experiences of limited life-path options, existential concerns, and stressful historical events (i.e., Great Depression, World War II, postwar era) during their young-adult years. Today's young adults, conversely, are socialized in rapidly changing social structures with increasing diversity in life-path options and in relative security with regard to basic material and security needs. We explore how these experiences might shape the future social development of today's young adults with respect to relationship contexts (e.g., living arrangements, digitalization) and relationship needs (e.g., exploration, self-actualization). We conclude with theoretical and methodological recommendations for future research that will be amply equipped to systematically investigate both age-related and contextual influences that drive development in any previous, present, and forthcoming cohort. (PsycInfo Database Record (c) 2020 APA, all rights reserved).