The Witness Credibility Scale: An outcome measure for expert witness research

The judge or jury makes a subjective determination of when an expert is credible. However, no published measure exists for assessment of the credibility of expert witnesses. The current study addressed this gap by developing and cross‐validating the Witness Credibility Scale (WCS). Drawing on the narrative literature, we hypothesized that credibility was a product of four factors: “likeability,” “believability,” “trustworthiness,” and “intelligence.” A 41‐item measure was initially constructed based on successive iterations of ratings by a panel of judges using items from the Osgood Semantic Differential measure and was subsequently administered to 264 undergraduates. A factor analysis of the data yielded a factor structure that consisted of four factors labeled, “knowledge,” “likeability,” “trustworthiness,” and “confidence.” The final version of the WCS used 20 adjectives with four subscales of five items, each subscale reflecting high loadings on the respective factors. The scale was then tested in five additional studies, in which the scale successfully differentiated between groups of videotaped experts testifying in manipulated conditions. The empirical data from these studies permit a foundation for comparing outcome data in future research investigations. Copyright © 2010 John Wiley & Sons, Ltd.     

Weighing the Evidence: Empirical Assessment and Ethical Implications of Conversion Therapy

The American Psychological Association's (APA's) as well as other professional organizations' (e.g., American Psychiatric Association) removal of homosexuality as a mental disorder represented a paradigmatic shift in thinking about exual orientation. Since then, APA (2000) American Psychiatric Association. 2000. Position statement on attempts to change sexual orientation (conversion and reparative therapies).. American Journal of Psychiatry, 157: 1719–1721. [PubMed], [Web of Science ®] , [Google Scholar] disseminated guidelines for working with lesbian, gay, and bisexual (LGB) clients, and a variety of scholars and researchers alike have advocated affirmative therapeutic interventions with LGB individuals. Despite these efforts, the controversy over treating individuals with LGB orientations using nonaffirmative techniques continues. In this discussion, the limited evidence regarding the efficacy and effects of conversion therapy is surveyed, particularly in the context of empirically supported treatment criteria summarized by Division 12 (clinical psychology) of the APA. Authors then consider the resulting ethical considerations in performing conversion therapy and propose alternative uses of affirmative therapy on the basis of ethical standards defined by APA. Finally, options for treating LGB individuals who are coming to terms with their sexual orientations are discussed.     

Reinforcing Functions of Altruism and Leaving the Scene

The reward value of helping and the reward value of leaving the scene were assessed separately by means of a social analog of instrumental escape conditioning. Both helping and leaving the scene proved to have reward value, with that of helping being much greater. The altruistic reward afforded by helping produced strong, regular, sustained learning of the instrumental response throughout the course of acquisition. The reward afforded by leaving the scene was much weaker in its effects but, nonetheless, superior to nonreinforced controls.     

Nature of Romantic Love in Female Adolescents

In the present study, I intended to determine the similarity between Rubin's (1970) Love Scale components and five of Lee's (1976) six lovestyles in a relatively homogenous sample of 301 16- and 17-year-old British females. Items describing loving behaviors toward a particular individual were formulated to measure these lovestyles together with that of Ludus. The six orthogonal factors extracted from the correlation matrix of these and Rubin's items were called Love, Mutual Love, Respect, Similarity, Physical Attraction and Hostility. The results suggested that Rubin's Love Scale contained elements of Mania and Agape but none of Ludus, which could not be further differentiated. Rubin's (1970) Liking Scale, however, could be further subdivided into Respect (Pragma) and Similarity (Storge).     

Sex differences in subjective distress to unfaithfulness: testing competing evolutionary and violation of infidelity expectations hypotheses

According to an evolutionary psychology perspective, men's and women's processing of threats to their sex-linked mate selection strategies cause sex differences in infidelity distress. An alternative account assumes that the distress results from men's and women's processing of expectation violations regarding the content of an unfaithful partner's actions with a rival. Logistic regressions supported the conclusion that the participant's sex-but not the processing of expectation violations-was the best predictor of the most distressing infidelity presented in forced-choice, mutually exclusive, and combined formats. Our results also indicated that the sex differences in infidelity distress were neither limited to using data from a forced-choice response format nor caused by the distinct inferences that men and women draw about the relation between love and sex.     

Narcissism through the ages: What happens when narcissists grow older?

Three types of adult narcissism, as assessed with Wink’s (1991) observational rating method, were studied over a period of 25 years, with participants from the Intergenerational Studies of the Institute of Human Development, UC Berkeley. Narcissism was assessed on three occasions, from age 34 to age 59. Hypersensitive narcissism was found to decrease, Autonomous narcissism increased, and Willfulness narcissism did not change with age. At age 34, both Willfulness and Autonomous narcissism were related to agentic personality characteristics, but only Autonomous narcissism was related to the communal personality characteristic of empathy. Change in narcissism between age 34 and age 59 was shown to predict change in personality at age 71. The agentic personality characteristics that had been associated with Willfulness narcissism at age 34 were no longer characteristic of those individuals at age 71. In addition, in contrast to Autonomous narcissism, at age 34 Willfulness and Hypersensitivity were associated with emotional maladjustment, and predicted continuing maladjustment and less favorable life outcomes in later life.     

Defense mechanisms, behavior, and affect in young adulthood

The relationship between defense mechanism use, observed behavior, and affect was investigated in a sample of 91 young adults. Defense mechanisms were assessed using Cramer's (1991a) Defense Mechanism Manual for TAT stories; behavior was based on observer Q-sort ratings (Block, 1978). The findings show that men and women who rely on the immature defense of denial at age 23 show multiple signs of behavioral immaturity, as well as anxiety. In contrast, extensive use of projection was related to a suspicious, hyperalert personality style, including anxiety and depression, in men, but to a sociable, nonwary, nondepressed style in women. The use of the mature defense of identification, by women, was related to behavior characterized by maturity, social competence, and the absence of depressive symptoms.     

Defense mechanisms in psychology today. Further processes for adaptation

Although the concept of the defense mechanism was rejected from academic psychology for a number of years, recent empirical studies show renewed interest in defenses. Cognitive psychologists have confirmed the existence of unconscious psychological processes, a requisite for defenses. Developmental, personality, and social psychologists have all found evidence for defense mechanisms that explicate psychological functioning. The relevance of this new information for clinical practice is discussed.     

Comparing the relative fit of various factor models of the self-consciousness scale in two independent samples

Research shows that using highly self-aware participants yields studies of higher reliability, validity, and statistical power; dispositional self-awareness is commonly measured using the Fenigstein Self-Consciousness Scale (Fenigstein, Scheier, & Buss, 1975). This study used confirmatory factor analysis to compare various factor models that may underlie that scale. Two independent student samples (296 from Bernstein, Teng, & Garbin, 1986, and 350 from a large Canadian university) completed the scale. Using 6 fit criteria, results from both samples supported the Burnkrant and Page (1984) 4-factor model, namely, that self-consciousness consists of 3 principle scales: Social Anxiety, Public Self-Consciousness, and Private Self-Consciousness (divided into Internal State Awareness and Self-Reflectiveness). We discuss the psychometric implications of enhancing scale reliability, validity, and self-awareness.