A validation of the Japanese adaptation of the Big Five Inventory-2.

The purpose of this study was to adapt a Japanese version of the Big Five Inventory-2 (BFI-2-J) to examine its factor structure, reliability, validity, and measurement invariance. The BFI-2-J assesses five domains and 15 facets of the Big Five personality traits. We analyzed two datasets: 487 Japanese undergraduates and 500 Japanese adults. The results of the principal component analysis and confirmatory factor analysis revealed that the domain-facet structure of the BFI-2-J was similar to that of other language versions. The reliability of the BFI-2-J is sufficient. The correlation coefficients between the BFI-2-J and the other Big Five and self-esteem measures supported convergent and discriminant validity. Moreover, we confirmed measurement invariance across age and sex groups in domain-level and facet-level models. The results suggest that the BFI-2-J is a good instrument for measuring the Big Five personality traits and their facets in Japan. The BFI-2-J is expected to be useful in Japanese personality research and international comparative research.

Suicide Attitudes Among Suicide Loss Survivors and Their Adaptation to Loss: A Cross-Cultural Study in Japan and the United States.

Survivors' adaptation to a suicide loss is likely influenced by their attitudes toward suicide and their respective sociocultural contexts. Our study aimed to compare suicide attitudes and their association with depressive symptoms and sense of community safety in Japanese and American suicide loss survivors. A total of 193 Japanese survivors and 232 American survivors completed online surveys. The results show that Japanese survivors tended not to consider suicide as an illness or to recognize that others understood their experience but were more likely than American survivors to consider suicide as justifiable. Regression analyses indicated that taking suicide as a right was associated with depressive symptoms. Further, their sense of being understood by others was positively correlated with perceived community safety in both samples, but justifying suicide and considering it to be an illness was positively related to perceived community safety only among Japanese survivors.

Perceptions of ideal grief and continuing bonds: Undergraduate student survey on persistent complex bereavement disorder.

Responding to DSM's call for research on Persistent Complex Bereavement Disorder (PCBD), this study examined to what extent people perceive the criteria as pathological. In total, 385 undergraduate students answered the Continuing Bonds Scale and Persistent Complex Bereavement Inventory as they believe an ideally healthy person of their demographic would respond 12 months post loss. People identifying as women, religious, without past bereavement, and who endorsed continuing bonds as normal tended to perceive PCBD criteria as more normative. Results shed light on whose norms may be reflected in criteria and highlight the importance of assessing client's norms when diagnosing.

Is Suicide Beautiful?

Background: The sociocultural context shapes attitudes toward suicide. Japanese literary works such as the Hagakure and the Bunraku Sonezaki-Shinju depict suicide as beautiful and honorable. Although suicide acceptance is likely to affect suicide rates and prevention efforts in Japan, studies in this area are limited. Aims: This study aimed to explore suicide acceptance and related factors among Japanese participants. Method: Using an Internet research company, questionnaires were distributed that measured acceptance of suicide, suicide stigma, mental health, an opinion on suicide prevention efforts, and demographic variables. Data from 2,051 participants were analyzed using t tests, analysis of variance (ANOVA), and hierarchical regression analysis. Results: We found a two-factor model (comprising beautification and justification factors) for the suicide acceptance scale and confirmed the scale's validity and reliability. The results showed significant differences in suicide acceptance by gender, age, educational level, employment status, and bereavement experience. A hierarchical regression analysis model revealed that suicide beautification was negatively related to positive opinion on suicide prevention efforts. Limitations: This study only focused on Japanese participants; therefore, further studies and cross-cultural comparisons are needed. Conclusion: The results revealed that suicide beautification was negatively associated with positive opinion on suicide prevention efforts after controlling for other variables.

Exploring suicide risk factors among Japanese individuals: The largest case-control psychological autopsy study in Japan.

This case-control psychological autopsy study explored suicide risk factors among Japanese individuals. We targeted 102 suicide completers over 20 years of age and 334 living controls matched to suicide cases by gender, age, and residential municipality in Japan. After controlling for other factors, we found significant associations between suicide and mental disorders, sleeping problems, and verbal communication of one's own death. We discuss the importance of sensitive responses to verbal expressions of suicidal ideation.

The World at 7:00: Comparing the Experience of Situations Across 20 Countries.

The purpose of this research is to quantitatively compare everyday situational experience around the world. Local collaborators recruited 5,447 members of college communities in 20 countries, who provided data via a Web site in 14 languages. Using the 89 items of the Riverside Situational Q-sort (RSQ), participants described the situation they experienced the previous evening at 7:00 p.m. Correlations among the average situational profiles of each country ranged from r = .73 to r = .95; the typical situation was described as largely pleasant. Most similar were the United States/Canada; least similar were South Korea/Denmark. Japan had the most homogenous situational experience; South Korea, the least. The 15 RSQ items varying the most across countries described relatively negative aspects of situational experience; the 15 least varying items were more positive. Further analyses correlated RSQ items with national scores on six value dimensions, the Big Five traits, economic output, and population. Individualism, Neuroticism, Openness, and Gross Domestic Product yielded more significant correlations than expected by chance. Psychological research traditionally has paid more attention to the assessment of persons than of situations, a discrepancy that extends to cross-cultural psychology. The present study demonstrates how cultures vary in situational experience in psychologically meaningful ways.