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In the current study, we took a unique dyadic approach to examine how people's relationship quality following an earthquake was associated with their and their partner's posttraumatic stress symptoms (PTSS) and whether support exchanges in the relationship protected relationship quality in the face of this adversity. Ninety-nine heterosexual couples were studied over 4 time points for approximately 15 months following the Canterbury, New Zealand, earthquakes. The data were analyzed using moderated growth-curve modeling in an Actor-Partner Interdependence Model framework. In line with predictions, both partners' PTSS scores were associated with lower relationship quality at Time 1 (the first assessment postearthquake). These associations, however, were attenuated by more frequent provisions of support between relationship partners, especially for men, at least in the short term. The associations, however, changed across time, suggesting that coping in a relationship context post trauma is a dynamic, fluid process. These findings demonstrate the importance of adopting a dyadic perspective and examining effects across time. They also highlight the importance of examining resources within the relationship context to more fully understand how PTSS affects relationships. (PsycINFO Database Record, ((c) 2017 APA, all rights reserved).)

Life history theory suggests that individual differences in parenting are partially rooted in environmental conditions experienced early in life. Whereas certain conditions should promote increased investment in parenting, unpredictable and/or harsh environments should promote decreased investment in parenting, especially in men. We tested this hypothesis in 3 studies. In Study 1a, we conducted analyses on 112 parents taking part in the Minnesota Longitudinal Study of Risk and Adaptation (MLSRA), all of whom have been continuously studied starting before they were born. Parenting orientations were assessed at age 32 via an interview. Findings showed that experiencing more unpredictability at ages 0-4 (i.e., frequent changes in parental employment status, cohabitation status, and residence) prospectively forecasted more negative parenting orientations among men, but not women. This effect was serially mediated by lower early maternal supportive presence measured at ages 0-4 and insecure attachment assessed at ages 19 and 26. In Study 1b, we replicated these findings on 96 parents from the MLSRA using behavioral observations of their parental supportive presence. In Study 2, we replicated the effect of early-life unpredictability on men's parenting orientations with a sample of 435 parents. This effect was mediated by adult attachment anxiety and avoidance. Across all studies, greater early-life harshness (low socioeconomic status [SES]) did not predict adult parenting outcomes. These findings suggest that greater early-life unpredictability may be conveyed to children through less supportive parenting, which results in insecure attachment representations in adulthood. Among men, this process culminates in less positive adult parenting orientations and less supportive parenting., ((c) 2015 APA, all rights reserved).)

In the research program summarized here, we adopted a behavioral systems approach to explain individual differences in human sexual behavior. In the 1st stage, we developed the Sexual System Functioning Scale (SSFS)-a self-report instrument for assessing hyperactivation and deactivation of the sexual system. Sexual hyperactivation involves intense but anxious expressions of sexual desire, whereas sexual deactivation includes inhibition of sexual inclinations. In subsequent stages, we administered the SFSS to 18 samples to determine its structural, convergent, discriminant, and predictive validity as well as its nomological network. We found that SSFS deactivation and hyperactivation scores are meaningfully associated with existing measures of sexual attitudes, motives, feelings, and behaviors and with measures of personal and interpersonal well-being. Moreover, the scores predict cognitive, affective, physiological, and behavioral responses to sexual stimuli. Implications of our findings for understanding the potential of sex for both joy and distress are discussed.