Social interdependence in close relationships: The actor–partner‐interdependence–investment model (API‐IM)

This article introduces the actor–partner‐interdependence–investment model (API‐IM) that was developed to add a dyadic perspective to Rusbult's investment model. The API‐IM is based on interdependence theoretical assumptions and the actor–partner interdependence model. Two studies were conducted to investigate the reliability of the API‐IM. Relationship satisfaction, investment size, quality of alternatives, and relationship commitment were assessed at both partners of 77 (Study 1) and 162 (Study 2) married and unmarried heterosexual couples. Path analyses that applied a structural equation modeling framework revealed a dyadic model that significantly predicts women's and men's commitment by actor effects of satisfaction, investments, and alternatives, and partner effects of satisfaction. Actor and partner effects of satisfaction were significantly moderated by relationship duration and marital status. Marital status also significantly moderated the actor effect of alternatives. The API‐IM supports the concept of social interdependence in close relationships, and it is discussed as a sound dyadic extension of the investment model. Copyright © 2012 John Wiley & Sons, Ltd.     

Love styles,coping, and relationship satisfaction: A dyadic approach

Romantic partners have different attitudes on what love is and what it means to be in a romantic relationship. These attitudes are conceptualized as love styles that relate to relationship‐maintenance behaviors and relationship satisfaction. Specifically, love styles could be associated with how partners cope with stress (dyadic coping), which in turn may be associated with relationship satisfaction. Using self‐report data from 92 heterosexual couples, findings showed that: (a) eros and agape love styles have positive direct effects on dyadic coping and relationship satisfaction, whereas ludus has a negative direct effect on dyadic coping and relationship satisfaction and (b) dyadic coping partially mediated the association between love styles and relationship satisfaction. Overall, associations were stronger for women than for men.     

Attachment insecurities and interpersonal processes in Spanish couples: A dyadic approach

Several attachment‐related phenomena in Spanish couples using dyadic‐level analyses were examined. A sample of 295 heterosexual couples completed measures of attachment‐related anxiety and avoidance, self‐esteem, social self‐efficacy, and relationship satisfaction. Results, analyzed from a dyadic perspective using the actor–partner interdependence model (APIM), indicate that (a) there are actor but no partner effects of attachment insecurities on intrapersonal variables such as self‐esteem and social self‐efficacy, (b) there are actor and partner effects of avoidant attachment on relationship satisfaction, and (c) actor anxiety is associated with partner avoidance, and actor avoidance is associated with partner anxiety. Overall, the results reveal the importance of a dyadic perspective on couple members' attachment insecurities and their associations with intrapersonal and interpersonal processes and relationship adjustment. They also show that attachment variables and correlates studied mainly in English‐speaking countries are useful in understanding Spanish couple dynamics.     

The way I make you feel: How relatedness and compassionate goals promote partner’s relationship satisfaction

Research has investigated the role of three basic psychological needs as proposed by Self-Determination Theory – autonomy, competence, and relatedness – in explaining relationship satisfaction. Research has also explored how relatedness specifically increases prosocial motivations in the individual but has not focused on the role of relatedness in shaping partners’ relationship functioning over time. This research takes a dyadic perspective that proposes that relatedness fulfillment fosters compassionate goals, which in turn predict increases in partner’s satisfaction. Forty-five heterosexual dating couples were asked about their relatedness need fulfillment, compassionate goals, and relationship satisfaction. Relationship satisfaction was assessed again four weeks later. Results showed that one’s own relatedness fulfillment, but not one’s partner’s relatedness fulfillment at Time 1 uniquely predicts partner’s increased satisfaction at Time 2, and that this is mediated by one’s own higher compassionate goals. These findings highlight the dyadic importance of having one’s needs met in promoting relationship functioning over time.     

Better to Decide Together: Shared Consumer Decision Making,Perceived Power,and Relationship Satisfaction

Shared consumer decisions, particularly those made with a relationship partner, can be very different from decisions that are made alone. Across multiple studies, we investigate how shared consumer decision making affects perceptions of power and relationship satisfaction. We integrate two streams of research to create a novel theory about consumer decision making and perceived power. Specifically, we suggest that shared consumer decision making combines two necessary components of power—an individual's influence over and a partner's engagement in the decision—and that these combined components drive power perceptions. In other words, individuals who relinquish some control and make a decision with their partner, ironically, perceive having greater power than if they had made the decision alone. We further find that shared decision making and greater perceived power lead to greater satisfaction with the relationship in which the decisions are made. By focusing on consumer decision making within relationships, the current research contributes to the literatures on decision making, social influences in consumer behavior, close relationships, consumer well-being, and power.     

Attachment insecurities,life satisfaction,and relationship satisfaction from a dyadic perspective: The role of positive and negative affect

The purpose of this research is to examine the association between attachment insecurities (anxiety and avoidance) and both subjective well‐being (positive affect [PA] and negative affect [NA] and life satisfaction) and relationship satisfaction. There were 174 Spanish heterosexual couples with a mean length of relationship of 13.9 years who participated in the study. The hypotheses were tested according to the actor–partner interdependence model. We proposed a model in which PA and NA could mediate the association between attachment insecurities and life and relationship satisfaction. Results show that (1) actor effects are more frequent than partner effects; (2) anxious attachment tends to be related to NA and avoidant attachment to PA; (3) avoidance is more detrimental than anxiety for relationship satisfaction at individual and dyadic levels, and (4) there are some mediational effects of NA and PA in the association between attachment insecurities and life and relationship satisfaction.     

Shame proneness and intimate relations in Mainland China

Using dyadic data from 200 young adult couples (aged 18–31 years) in Mainland China, this study evaluated associations between shame proneness, intimate partner attachment, adaptive interactions, and relationship satisfaction. Results demonstrated that shame proneness was directly associated with more insecure attachment to the partner (anxious and avoidant dimensions) and less adaptive interactions (operationalized by variables assessing constructive problem solving and negative interactions) and indirectly with lower relationship satisfaction for male and female partners. While shame is a highly valued emotion in Confucian cultures, shame proneness may be a liability for modern‐day intimate relations.     

Attachment,trust, and satisfaction in relationships: Investigating actor,partner, and mediating effects

Romantic relationship dissatisfaction has been cited as a primary reason for seeking mental health services (H. M. Foran, M. A. Whisman, & S. R. H. Beach, 2015). An increasing number of studies have revealed the importance of romantic attachment in understanding relationship satisfaction (M. Mikulincer & P. R. Shaver, 2016). This study aims to assess dyadic trust as a possible mediator of the relation between insecure romantic attachment and relationship satisfaction within a Canadian community sample of 199 heterosexual couples. Results revealed significant actor and partner effects. Specifically, male and female attachment avoidance, as well as male attachment anxiety, predicted lower dyadic trust, which in turn predicted lower relationship satisfaction. These results add to the current literature, suggesting important gender differences in the effects attachment has on overall relationship satisfaction.     

Attachment,caregiving, and marital satisfaction

This research tested the proposition that attachment and caregiving are central, interrelated components of adult love relationships. A sample of 229 married couples was used to assess the association between attachment and caregiving styles and the implications of these variables for marital satisfaction. There was evidence of partner matching in terms of dimensions of attachment (Comfort with closeness, Anxiety over relationships) and caregiving (Responsive care, Compulsive care). Secure attachment (high Comfort with closeness, low Anxiety over relationships) was associated with beneficial caregiving to the spouse (high Responsive care, low Compulsive care). These associations were modest in size, however, suggesting that attachment and caregiving are separate constructs; further, these constructs were related in different ways to retrospective reports of early parenting. Marital satisfaction was higher for securely attached spouses, and for those whose partners reported more beneficial caregiving. For husbands, however, the link between caregiving and satisfaction was restricted to short-term marriages, and to those high in Anxiety over relationships. Overall, the results support the role of attachment and caregiving in marriage, but suggest that variables such as gender have important moderating effects.     

Avoidance motivation and relationship commitment in heterosexual,gay male,and lesbian partners

This study examined whether avoidance motivation is distinct from the satisfaction level, quality of alternatives, and investment size components of C. E. Rusbult, J. M. Martz, and C. R. Agnew’s (1998) investment model. Data from 3 samples (392 heterosexual dating partners, 225 heterosexual dating partners, and 351 gay male or lesbian cohabiting partners, respectively) indicated that items tapping satisfaction level, quality of alternatives, investment size, and avoidance motivation defined separate factors and that avoidance motivation accounted for unique variance in commitment. Satisfaction level moderated the link between investment size and commitment for dating partners and moderated the link between quality of alternatives and commitment, investment size and commitment, and avoidance motivation and commitment for gay male or lesbian partners.     

Young women with and without non-suicidal self-injury: A comparison of romantic relationship functioning

IntroductionThe interpersonal context of an individual struggling with non-suicidal self-injury (NSSI) is of critical importance.ObjectiveThe purpose of the current study is to offer, through a dyadic perspective, a unique portrait of the relevant indicators of romantic relationship functioning (i.e., romantic attachment, dyadic trust, dyadic coping, relationship satisfaction, and caregiving) that distinguish young women who have engaged in NSSI from those who have not.MethodParticipants consisted of 20 women who indicated having engaged in NSSI in the past six months and 20 women who indicated having never engaged in NSSI, along with their respective partner.ResultsResults revealed that women who engaged in NSSI were more likely to report subjective distress in the form of attachment anxiety and distrust, as well as lower relationship satisfaction and adaptive dyadic coping strategies, compared to women who had never engaged in NSSI. Findings also showed that partners of women who engaged in self-injury reported more attachment anxiety than partners of women who do not engage in NSSI.ConclusionThese results highlight the importance of romantic relationship dynamics and the potential associations with engagement in self-injurious behaviors, which has implications for the development of effective prevention and intervention strategies.     

Self-esteem is a shared relationship resource: Additive effects of dating partners’ self-esteem levels predict relationship quality

Though self-esteem is known to positively impact individuals’ romantic relationship outcomes and those of their partners, the interactive nature of both partners’ self-esteem levels has not been systematically investigated. Using actor-partner interdependence model analyses we estimated actor, partner, and four types of dyadic effects of self-esteem on relationship quality in a sample of over 500 heterosexual dating couples. Lower self-esteem individuals and their partners reported lower satisfaction and commitment to their relationships than did higher self-esteem individuals and their partners. An additive effect whereby both partners’ self-esteem levels combine to predict relationship quality best described the dyadic effects. Results highlight the importance of considering the interactive nature of individual characteristics in dyadic research.     

Interpersonal coping styles and couple relationship quality: Similarity versus complementarity hypotheses

This study employs a dyadic approach and examines how two partners' interpersonal coping styles may independently and jointly predict their relationship quality. Hypotheses were derived on the basis of dyadic coping theory focusing on how similar versus complementary styles of interpersonal coping may be useful in explaining couples' relationship quality. On the basis of attachment theory and self‐determination theory, three interpersonal coping styles were included: dismissive, adaptive, and anxious/expressive. Data were collected from 123 romantic couples. Actor–partner interdependence models revealed that interpersonal coping styles were related to self‐perceived (actor effect) and partner‐perceived (partner effect) relationship quality. Furthermore, results also showed that relationship quality was predicted by the interactions between self's and partner's interpersonal coping styles. Findings suggest that future research should focus on understanding interpersonal coping behaviors of both partners in a relationship, especially the complex interactions between two partners' characteristics and their effects on relationship outcomes. Copyright © 2014 John Wiley & Sons, Ltd.     

Attachment styles and relationship quality: Actual,perceived, and ideal partner matching

Attachment dimension matching in dating relationships and how matching relates to relationship quality were investigated. Across 2 studies, individuals preferred similar but more secure partners (lower anxiety and lower avoidance) as reflected by their ideals. In Study 1, greater similarity between the self and perceptions of the partner's anxiety predicted more positive relationship outcomes (e.g., relationship satisfaction, trust). Similar results were found for ideal–perceived partner avoidance similarity, whereas ideal–perceived partner anxiety similarity was less important. Study 2 involved both partners in the relationship and indicated that relationship outcomes were predicted by the actor's and partner's attachment dimensions as well as by ideal–perceived partner similarity and self–perceived partner similarity.     

Drug-abusing patients and their intimate partners: dyadic adjustment, relationship stability, and substance use

The dyadic adjustment and substance use of couples with a drug-abusing husband (n = 94), couples with a drug-abusing wife (n = 36), couples in which both partners abused drugs (n = 87), and non-substance-abusing conflicted couples (n = 70) were examined. For couples with 1 drug-abusing partner, a higher percentage of days abstinent during the year before treatment for drug abuse was associated with a higher level of relationship satisfaction. When both partners abused drugs, the relationship between percentage of days abstinent and relationship satisfaction became stronger and more negative as the time partners spent together using drugs increased. A higher percentage of days abstinent was associated with relationship stability for couples with 1 drug-abusing partner during and 1 year after treatment; for couples in which both partners abused drugs, a higher percentage of days abstinent was associated with relationship instability.     

Partner–objectification in romantic relationships: A dyadic approach

The present study investigated the relationship between the objectification of one's romantic partner (partner–objectification) and relationship quality using 221 heterosexual couples. Controlling for relevant covariates, actor–partner interdependence models revealed no partner effects but multiple actor effects. First, men who objectified their partners more had lower levels of relationship commitment and relationship satisfaction, and perceived higher quality alternatives to the relationship. Second, women who objectified their partners more had lower levels of relationship satisfaction themselves. Third, relationship duration marginally moderated the association between partner–objectification and relationship commitment, with partner–objectification negatively linked to one's own relationship commitment in relationships of shorter durations, but not when relationship durations were longer. Implications for an investment model and romantic relationship objectification are discussed.     

Lovers With Happy Feet: The Interdependence of Relationship and Activity Factors for Individuals Dancing With a Romantic Partner

The significance that romantic partners ascribe to joint activities and the impact these activities have on relationship quality were examined in the context of self‐determination theory. Individuals who practice ballroom dancing with a romantic partner were invited to complete measures of motivation and perception of dyadic adjustment for their relationship and when dancing. Results from path analyses suggested direct and indirect effects of relationship motivation on satisfaction when dancing with a partner. Additionally, direct and indirect effects of motivation for dancing with a partner on relationship satisfaction were also found. Overall, this study suggests that couple functioning plays a role in joint activity functioning and satisfaction. Satisfaction in joint activities can also contribute to the overall quality of the relationship.     

A multilevel examination of interpartner intimate partner violence and psychological aggression reporting concordance

Low concordance of reports across partners has consistently been observed when partners report the frequency of intimate partner violence (IPV) and psychological aggression (PA) in their relationship. Researchers have been unsuccessful in the quest to discover systematic biases across reporters, perhaps due to examining constructs that are not the source of bias (e.g., gender, victim/perpetrator status) or examining potentially fruitful constructs using underpowered statistics or erroneous conceptualizations (e.g., examining variables at a dyadic, rather than an individual, level). We used multilevel modeling with two samples (Ns = 88 and 164 couples) to examine husbands' and wives' relationship satisfaction as individual-level correlates of husband- and wife-perpetrated IPV and PA reporting concordance. Consistent with prior literature, low to moderate levels of agreement were observed, and gender and victim/perpetrator status were not consistently associated with reporting concordance. In contrast, for both husbands and wives, relationship satisfaction was associated with reporting concordance such that high relationship satisfaction was related to reporting less of one's partner's PA than the partner reported, whereas low relationship satisfaction was related to reporting more of one's partner's PA than the partner reported. A similar pattern of results emerged for the reporting of IPV, but results did not cross validate between samples. These findings suggest that relationship satisfaction may lead to either reluctance, or increased willingness, to attribute negative relationship events to partner behavior, potentially due to partner blame and relationship schemas. In addition, the influence of individual-level factors may be occluded when aggregated across partners to examine correlates of interpartner reporting concordance.     

Implicit attitudes towards romantic partners predict well‐being in stressful life conditions: Evidence from the antenatal maternity ward

An idiographic variant of the Implicit Association Test (IAT; Greenwald, McGhee, & Schwartz, 1998 ) was used to investigate how implicit attitudes towards romantic partners are related to explicit attitudes, relationship‐related variables such as adult attachment and relationship satisfaction, and psychological well‐being as a potential outcome of relationship quality. The validity of the Partner‐IAT was investigated using a known group approach that contrasted abused women currently living in a refuge (N = 22), women who had recently fallen in love (N = 19), women who were currently hospitalized due to pregnancy complications (N = 48), and a control group of female students (N = 52). Across the whole sample, the Partner‐IAT showed satisfactory internal consistency (α  =  .83). As expected, the analysis of group differences revealed that abused women living in a refuge showed more negative implicit and explicit attitudes toward (ex‐)partners than women belonging to the other three groups. Women in love showed the most positive partner attitudes, but the difference to the control group reached significance only for explicit but not implicit attitudes. Implicit attitudes toward partners correlated significantly with explicit attitudes, secure attachment, and psychological well‐being. To investigate whether implicit and explicit partner attitudes can predict important relationship outcomes, psychological well‐being was regressed on both variables in group‐wise hierarchical multiple regression analyses. Explicit partner attitudes were significantly related to psychological well‐being in student controls and hospitalized pregnant women. However, only in hospitalized pregnant women did implicit attitudes account for variance in well‐being over and above explicit attitudes. This pattern of results is compatible with the notion that positive implicit representations of the romantic partner can function as a genuine coping resource that effectively buffers against major stressful life circumstances.