Estimating Actor,Partner, and Interaction Effects for Dyadic Data Using PROC MIXED and HLM: A User–Friendly Guide

Data collected from both members of a dyad provide abundant opportunities as well as data analytic challenges. The Actor–Partner Interdependence Model (APIM; Kashy & Kenny, 2000) was developed as a conceptual framework for collecting and analyzing dyadic data, primarily by stressing the importance of considering the interdependence that exists between dyad members. The goal of this paper is to detail how the APIM can be implemented in dyadic research, and how its effects can be estimated using hierarchical linear modeling, including PROC MIXED in SAS and HLM (version 5.04; Raudenbush, Bryk, Cheong, & Congdon, 2001). The paper describes the APIM and illustrates how the data set must be structured to use the data analytic methods proposed. It also presents the syntax needed to estimate the model, indicates how several types of interactions can be tested, and describes how the output can be interpreted.     

Implicit partner affect, relationship satisfaction, and the prediction of romantic breakup

The current research investigated the role of spontaneous partner feelings (implicit partner affect) in the dynamics of relationship satisfaction, commitment, and romantic dissolution. Participants completed a variant of the name-letter task as a measure of implicit partner affect, and self-report measures of relationship satisfaction and commitment. Approximately 4 months later, participants were contacted to assess their current relationship status. Overall, participants showed a biased preference for their partner’s initials (after adjusting for proper baselines), indicating the presence of positive implicit partner affect. Participants with more positive implicit partner affect were more satisfied with, but not more committed to, their relationship. Additionally, implicit partner affect exerted a significant indirect effect on relationship stability. These effects were independent of relationship length, age, and gender. Implications for the role of automatic affective processes in relationship processes and the utility of indirect measures for shedding light on relationship dynamics are discussed.     

Perceptions of conflict and support in romantic relationships: the role of attachment anxiety

Guided by attachment theory, a 2-part study was conducted to test how perceptions of relationship-based conflict and support are associated with relationship satisfaction/closeness and future quality. Dating partners completed diaries for 14 days (Part 1) and then were videotaped while discussing a major problem that occurred during the diary study (Part 2). Part 1 reveals that more anxiously attached individuals perceived more conflict with their dating partners and reported a tendency for conflicts to escalate in severity. Perceptions of daily relationship-based conflicts negatively impacted the perceived satisfaction/closeness and relationship futures of highly anxious individuals, whereas perceptions of greater daily support had positive effects. Part 2 reveals that highly anxious individuals appeared more distressed and escalated the severity of conflicts (rated by observers) and reported feeling more distressed. The authors discuss the unique features of attachment anxiety and how changing perceptions of relationship satisfaction/closeness and stability could erode commitment over time.     

The ‘Scandal’ of the Lubavitch Rebbe: Messianism as a Response to Failed Prophecy

In June 1994, the Lubavitch Rebbe, believed to be the Mosiach (the Messiah) died. Counter-intuitively, this failure of prophecy gave birth to an extreme messianic movement within the group, dividing it into two antagonistic factions (messianists and anti-messianists). This article examines the Beis Menachem, a messianic group whose members believe that the Rebbe is not dead; some even believe that he is God. We argue that this strong messianic response was predictable, given the influence of four factors that prior analyses suggest are important in determining whether a group will survive the failure of a significant prophecy: (1) the ways in which the prophetic milieu is prepared, (2) the nature and extent of the preparatory activities people engaged in, (3) the nature, speed, and thoroughness of the response of group leaders to a failed prophecy, and (4) the level of social support available for those who remain faithful to a prophecy. Emphasis in this study is given to the first and fourth factor; it is argued that the diachronic study of groups like the Lubavitch provides new insights into the ideological, organisational, and situational conditions that facilitate the successful management of dissonance and thus the persistence of unusual beliefs.     

Predictors of PTSD Improvement with Cognitive/Exposure Group Interventions in Operation Enduring Freedom/Operation Iraqi Freedom Female Veterans

Predictors of successful PTSD outcome have been examined through individually delivered treatments. We examined predictors using a group protocol with cognitive, exposure, and skills modules. Assessments included self-report and interview (CAPS, SCID-I/II) measures at baseline, post, and six months; treatment was a 16-week, three-member group for 32 OEF/OIF women Veterans. A regression analysis showed major depressive disorder and no baseline psychiatric medication predicted PTSD improvement. PTSD improvement predicted fewer outpatient medical visits at follow-up. The results supported past research and challenged other findings (e.g., sexual assault predicts less improvement). An additional unique contribution was examining predictors in a group treatment format.     

Responses to verifying and enhancing appraisals from romantic partners: the role of trait importance and trait visibility

An experiment assessed when people respond more positively to verifying and enhancing appraisals from romantic partners. Two‐hundred and fifty‐eight individuals comprising 129 dating couples participated in this research. Couples privately rated their self‐concept on traits that were either high or low on trait visibility, rated how important each trait was to them, and rated their partners. A computer program ostensibly compared their self‐ratings with appraisals from their partners on traits they selected as being high or low in personal importance, and participants received either verifying or enhancing feedback. Confirming predictions, people believed their partners understood them more when they received verifying feedback, but felt their partners saw the best in them when they received enhancing feedback. Additionally, people responded more positively to verifying appraisals on important, less visible traits, and enhancing appraisals on important, highly visible traits. Results are discussed in terms of preferences for enhancing and verifying feedback in romantic relationships. Copyright © 2005 John Wiley & Sons, Ltd.     

Anxious attachment and relationship processes: an interactionist perspective

Relationship processes in adult romantic relationships have been vastly studied under the aegis of attachment theory. Attachment theory is interactionist in nature, proposing that individual differences in levels of both attachment avoidance and anxiety predict an individual's thoughts, feelings, and behaviors in contexts that activate attachment concerns. A growing body of research is beginning to systematically test the conditions in which individual differences in attachment orientations both predict and fail to predict relationship processes. In this article, we focus on anxious attachment and review a program of research showing that the potentially destructive relationship processes typically observed in highly anxious individuals do not always appear in neutral or benign contexts, or when security needs are met. We argue that research needs to more thoroughly investigate the conditions that should, or should not, activate attachment concerns and thus result in links between individual differences in attachment orientations and relationship processes.     

Humor in romantic contexts: do men participate and women evaluate?

Several lines of research illustrate that humor plays a pivotal role in relationship initiation. The current article applies sexual selection theory to argue that humor production is a fitness indicator, allowing men to transmit information tacitly about their underlying qualities. And whereas prior research has emphasized women's appreciation of humor as a signal of interest, the focus here is on how women evaluate prospective suitors' humorous offerings. Two studies, including an ecologically valid study of online dating advertisements, provided evidence for men's production and women's evaluation of humor in romantic contexts. A third study revealed that women's evaluations of potential mates' humor are predictive of their romantic interest. Moreover, this article shows that preferences for and perceptions of humor are associated with preferences for and perceptions of intelligence and warmth, consistent with the argument that one function of humor is as a fitness indicator that provides information about underlying mate quality.     

The association between attachment orientations and partner evaluations: An ideal standards perspective

This research examined links between attachment orientations and evaluations of potential and existing relationship partners with respect to ideal standards. In Study 1, attachment anxiety and avoidance predicted the tradeoffs individuals made when choosing between potential mates. In Studies 2 and 3, attachment anxiety and avoidance were associated with ideal partner discrepancies within existing relationships. The findings across the three studies suggest that highly anxious individuals are more likely to use the ideal partner warmth/trustworthiness and status/resources dimensions when evaluating hypothetical and actual romantic partners, whereas highly avoidant individuals are more inclined to use the ideal partner vitality/attractiveness and status/resources dimensions when making partner evaluations. These novel findings are discussed in terms of evolutionary models of mating strategies and evaluations.