Posttraumatic stress disorder's frequency and intensity ratings are associated with factor structure differences in military veterans

We examined possible differences in the factor structure of posttraumatic stress disorder (PTSD) on the basis of whether frequency or intensity symptom response formats were used to assess PTSD. Participants included 669 veterans recruited from an epidemiological study of four Veterans Affairs Medical Centers' primary care clinics in the southeastern United States. Confirmatory factor analysis using measurement invariance testing found that the frequency and intensity symptom formats were significantly different from each other on PTSD's factor structure parameters, including factor loadings, observed variable intercepts, and measurement errors. The only exception was for PTSD's effortful avoidance symptoms, which were associated with equivalent parameter estimates for both the frequency and intensity formats. Implications for the clinical assessment of PTSD and interpretation of the extant literature base on PTSD's factor structure are considered.     

Implicit and explicit prejudice in the 2008 American presidential election

The 2008 US presidential election was an unprecedented opportunity to study the role of racial prejudice in political decision making. Although explicitly expressed prejudice has declined dramatically during the last four decades, more subtle implicit forms of prejudice (which come to mind automatically and may influence behavior unintentionally) may still exist. In three surveys of representative samples of American adults, explicit and implicit prejudice were measured during the months preceding the election. Both explicit and implicit prejudice were significant predictors of later vote choice. Citizens higher in explicit prejudice were less likely to vote for Barack Obama and more likely to vote for John McCain. After controlling for explicit prejudice, citizens higher in implicit prejudice were less likely to vote for Obama, but were not more likely to vote for McCain. Instead, they were more likely to either abstain or to vote for a third-party candidate rather than Obama. The results suggest that racial prejudice may continue to influence the voting process even among people who would not endorse these attitudes.     

You do not only hurt the one you love: Self-protective responses to attractive relationship alternatives

Committed romantic relationships confer important benefits to psychological health and well-being. However, to effectively maintain these relationships, individuals must avoid threats posed by the temptation of attractive relationship alternatives. Previous work has demonstrated that individuals in committed relationships consciously downplay the allure of romantic alternatives. The current work tested the hypothesis that attractive relationship alternatives evoke an automatic self-protective response at an early stage of cognition. The current study employed a computer simulation that recorded automatic, split-second assessments of threat elicited by social targets that varied in their gender and level of attractiveness. Consistent with hypotheses, attractive opposite-sex targets evoked automatic self-protective responses from participants in committed heterosexual relationships. Moreover, these responses seemed to be particularly pronounced among the male participants in committed relationships. These findings have implications for the maintenance of long-term close relationships.