The purpose of this study was to translate the Experience of Close Relationship-Relationship Structure (ECR-RS) and evaluate its validity. In study 1 (N = 982), evidence based internal structure (factor structure, internal consistency, and correlation among sub-scales) and evidence based relations to other variables (depression, reassurance seeking and self-esteem) were confirmed. In study 2 (N = 563), evidence based on internal structure was reconfirmed, and evidence based relations to other variables (IWMS, RQ, and ECR-GO) were confirmed. In study 3 (N = 342), evidence based internal structure (test-retest reliability) was confirmed. Based on these results, we concluded that ECR-RS was valid for measuring adult attachment style.

Objective and background This study examined the longitudinal adverse influences of attachment anxiety and the dark triad on psychological intimate partner violence (IPV) perpetration and victimization through daily negative emotions. Method We conducted a 1‐year paired longitudinal study that followed married couples across three waves of assessment. The participants were 471 married couples in Japan. They completed measures of the dark triad and attachment anxiety (Wave 1), daily negative emotions (Wave 2: 1 month after Wave 1), and psychological IPV victimization (Wave 3: 1 year after Wave 1). Results The actor–partner interdependence model showed that attachment anxiety and the dark triad were positively associated with psychological IPV perpetration 1 year later through different processes. Whereas attachment anxiety was related to psychological IPV perpetration through daily negative emotions for both men and women, the dark triad was directly related to psychological IPV perpetration across sex groups. In addition, attachment anxiety was positively related to psychological IPV victimization through daily negative emotions for men and women, but the dark triad was not. Conclusion and implication Attachment anxiety and the dark triad were associated differently with psychological IPV perpetration 1 year later, whereas these processes are equivalent for men and women. Our results imply that for individuals with high attachment anxiety, interventions to regulate daily negative emotions such as depression and distress may buffer against both IPV victimization and perpetration.

The term sociosexuality is used to describe individual differences in people's willingness to engage in uncommitted sexual relationships. The authors developed the revised Sociosexual Orientation Inventory in Japanese (SOI-J) to assess sociosexuality. In addition, we examined the effect of sociosexuality on flirting behaviors. In study 1 and study 2, we translated the revised Sociosexual Orientation Inventory into Japanese and confirmed its reliability and validity. The results of study 3 showed that male sociosexuality had an effect on male and female flirting behaviors. On the other hand, the results showed that female sociosexuality had no effect on male and female flirting behaviors. These results suggest that relationship initiation is controlled by females.

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The purpose of this study was to determine the causal relationship between Attachment Anxiety and Intimate Partner Violence (IPV). Several studies have showed that Attachment Anxiety increases IPV, but most of them were cross-sectional studies. Therefore, it is unclear whether Attachment Anxiety or IPV is an antecedent factor. Thus, we conducted two longitudinal studies of couples in romantic and marital relationships. In Study 1, a 6-month longitudinal survey was conducted on 392 young adults who were currently involved in a romantic relationship. In Study 2, a 2-year longitudinal survey was conducted on 412 married young and middle-aged adults. The results of structural equation modeling with a cross-lagged effect model showed that Attachment Anxiety predicted increases of later IPV in both types of relationships. These results are discussed in terms of adult attachment theory and IPV prevention.