The Latent Structure of the Center for Epidemiological Studies-Depression Scale

Taxometric analyses were used to assess the latent structure of depressive symptoms as measured by the Center for Epidemiological Studies Depression (CES-D) scale. Participants were 3,395 college students enrolled in Introductory Psychology classes at a mid-size university. Analyses included data simulation strategies to assure that the data was appropriate for interpreting skewed indicators and small putative taxa. Four indicators (depressed mood, positive affect, somatic, and interpersonal symptoms) were derived from principal components analysis. Taxometric analyses indicated that distributions of the four CES-D factor based indicators were dimensional. Results are consistent with a continuity model of the latent structure of questionnaire measures of depressive symptoms in this young adult population, of which approximately 15% scored above the clinical cut-point for the CES-D scale.     

Depicting the Missing: Prospective and Retrospective Person Memory for Age Progressed Images

One approach that has been used to help recover missing children is forensic age progression. In forensic age progression, outdated photographs of missing children are aged to provide an estimate of the current appearance of the child. We examined the effectiveness of age progressed images in the context of both prospective person memory and retrospective person memory. Memory for outdated and age progressed images did not significantly differ. Moreover, there was some indication that age progressed images were associated with a more conservative response bias. The results failed to demonstrate an advantage for age progressed pictures. Copyright © 2011 John Wiley & Sons, Ltd.     

Using game theory to examine incentives in influenza vaccination behavior

The social good often depends on the altruistic behavior of specific individuals. For example, epidemiological studies of influenza indicate that elderly individuals, who face the highest mortality risk, are best protected by vaccination of young individuals, who contribute most to disease transmission. To examine the conditions under which young people would get vaccinated to protect elderly people, we conducted a game-theory experiment that mirrored real-world influenza transmission, with "young" players contributing more than "elderly" players to herd immunity. Participants could spend points to get vaccinated and reduce the risk of influenza. When players were paid according to individual point totals, more elderly than young players got vaccinated, a finding consistent with the Nash equilibrium predicting self-interested behavior. When players were paid according to group point totals, however, more young than elderly players got vaccinated-a finding consistent with the utilitarian equilibrium predicting group-optimal behavior-which resulted in higher point totals than when players were paid for their individual totals. Thus, payout structure affected whether individuals got vaccinated for self-interest or group benefit.     

Disengagement and Engagement Coping with HIV/AIDS Stigma and Psychological Well-Being of People with HIV/AIDS

The stigma associated with HIV/AIDS poses a psychological challenge to people living with HIV/AIDS. We hypothesized that that the consequences of stigma-related stressors on psychological well-being would depend on how people cope with the stress of HIV/AIDS stigma. Two hundred participants with HIV/AIDS completed a self-report measure of enacted stigma and felt stigma, a measure of how they coped with HIV/AIDS stigma, and measures of depression and anxiety, and self-esteem. In general, increases in felt stigma (concerns with public attitudes, negative self-image, and disclosure concerns) coupled with how participants reported coping with stigma (by disengaging from or engaging with the stigma stressor) predicted self-reported depression, anxiety, and self-esteem. Increases in felt stigma were associated with increases in anxiety and depression among participants who reported relatively high levels of disengagement coping compared to participants who reported relatively low levels of disengagement coping. Increases in felt stigma were associated with decreased self-esteem, but this association was attenuated among participants who reported relatively high levels of engagement control coping. The data also suggested a trend that increases in enacted stigma predicted increases in anxiety, but not depression, among participants who reported using more disengagement coping. Mental health professionals working with people who are HIV positive should consider how their clients cope with HIV/AIDS stigma and consider tailoring current therapies to address the relationship between stigma, coping, and psychological well-being.     

Psychopathic traits and externalizing behaviors: a comparison of self- and informant reports in the statistical prediction of externalizing behaviors

It has long been assumed that features associated with psychopathy, such as a lack of insight and deceitfulness, may compromise the utility of self-report measures, particularly for understanding the relations between these traits and important outcomes (e.g., offending). Unfortunately, little research has explicitly examined the relations between self- and informant reports of psychopathy and their relations to these outcomes. The current study examined the incremental validity of self- and informant reports of psychopathic traits, assessed with 3 validated psychopathy measures, in the statistical prediction of externalizing behaviors (EBs). To reduce shared method variance, self- and informant reports of EBs (i.e., substance use, antisocial behavior, gambling, and intimate partner violence) were examined separately. Results indicate that both self- and informant reports of psychopathy are related to EBs and provide some degree of incremental validity, although self-reported psychopathy scores proved slightly more useful than other-reported psychopathy scores. These findings suggest that, in nonforensic settings, psychopathy data derived from both self- and other-reported psychopathy measures have utility in understanding the relations between psychopathic traits and EBs.     

Barriers to and Motivations for Physician Referral of Patients to Cancer Genetics Clinics

Although it is well known that under-referral of colon cancer patients to cancer genetics clinics is a chronic problem, no study has yet examined why physicians may be ordering testing independently rather than referring patients to cancer genetics clinics. The current study explored variables which may impact a physician’s preference for ordering testing independently or referring patients to outside cancer genetics experts. An online questionnaire, distributed to the membership of the American College of Gastroenterology and the American Society of Colorectal Surgeons, yielded responses from 298 physicians. Motivations to refer to cancer genetics clinics rather than order testing independently included fear of genetic discrimination and a belief that patients benefit from genetic counseling about the risks, benefits and consequences of testing. These results suggest that in order to increase referrals, genetic counselors must educate physicians about the unique benefits patients receive from participating in genetic counseling.     

Is the Narcissistic Personality Inventory still relevant? A test of independent grandiosity and entitlement scales in the assessment of narcissism

Some scholars have called for the replacement of the Narcissistic Personality Inventory (NPI) with more narrow scales measuring grandiosity and entitlement instead. In the current study, the authors examined the relations among the NPI and measures of grandiosity and entitlement, as well as in relation to a measure of the Five-Factor Model (FFM). The NPI manifested significant correlations with the alternative scales of entitlement and grandiosity and relatively similar patterns of correlations with the FFM traits. Of note, the NPI manifested significant incremental validity in the prediction of several FFM traits that are central to the conceptualization of narcissism. These findings suggest that some caution must be used before assuming that these lower-order scales can be used to replace the NPI in the assessment of narcissism.     

Recruiting and Retaining High-Risk Adolescents into Family-Based HIV Prevention Intervention Research

The purpose of this study was to examine the effectiveness of evidence-based recruitment and retention strategies for a longitudinal, family-based HIV prevention intervention study targeting adolescents in psychiatric care by (1) determining consent rate (recruitment), rate of participation at the first intervention session (retention), and follow-up attendance rate (retention); and (2) examining socio-demographic factors, family-level processes, sexual risk-related indices, and intervention factors (i.e., treatment arm) associated with study retention. Only one-third of the families contacted ultimately enrolled in the study. 81% of those enrolled participated in the workshop and 72% attended the booster sessions with no significant differences between families on any variable based on attendance. Retention over 1?year was 85% and did not differ by treatment arm. Strategies employed were successful at retaining families once they were enrolled. Findings highlight barriers to enrollment for adolescents in psychiatric care and suggest that it may be critical to integrate HIV prevention programs within community-based mental health services in order to counteract recruitment challenges.     

Too dog tired to avoid danger: Self-control depletion in canines increases behavioral approach toward an aggressive threat

This study investigated whether initial self-control exertion by dogs would affect behavioral approach toward an aggressive threat. Dogs were initially required to exert self-control (sit still for 10 min) or not (caged for 10 min) before they were walked into a room in which a barking, growling dog was caged. Subject dogs spent 4 min in this room but were free to choose where in the room they spent their time. Approaching the unfamiliar conspecific was the predisposed response, but it was also the riskier choice (Lindsay, 2005). We found that following the exertion of self-control (in comparison with the control condition), dogs spent greater time in proximity to the aggressor. This pattern of behavior suggests that initial self-control exertion results in riskier and more impulsive decision making by dogs.