Investigating the functioning of a middle category by means of a mixed-measurement model

Researchers have studied whether there are classes of people who differ systematically in the way they respond to polytomous ordered scales with a middle category such as ?. The mixed-partial credit model was fitted to a number of scales of a personality questionnaire. Most of the scales fit better with the use of 2 latent subpopulations. The most consistent difference among the latent classes was related to the functioning of the middle response category. For most of the examinees, the probability of choosing the middle category was very close to zero, but a nonnegligible percentage of people selected this category with much higher probability. The total scores from the 2 subpopulations were incommensurate. Some personality factors contributed to explaining class membership.     

Diverse Phases of Collaboration: Working Together to Improve Community-Based HIV Interventions for Adolescents

Although alliances between community-based organizations (CBOs) and university-based evaluators provide opportunities to enhance community-based interventions, such partnerships may be fraught with challenges and obstacles. This paper focuses on the "story" behind a collaborative partnership between a Latino-focused CBO and a team of university-based evaluators that was formed to evaluate HIV prevention interventions for Mexican American female adolescents and gay/bisexual/questioning (GBQ) Latino male adolescents. A developmental trajectory of the partnership is detailed, with a focus on the creation and enhancement of a reciprocal and mutually beneficial relationship. In tracing this history, the paper explores challenges that were faced and presents ways in which the partnership attempted to overcome obstacles. Recommendations are offered to assist in the formation and maintenance of collaborative partnerships between CBOs and university-based evaluators/researchers.     

The Need for Action When Conducting Intervention Research: The Multiple Roles of Community Psychologists

In choosing to implement empowering interventions with marginalized populations, community psychologists often have to merge research and action. We present three case stories that exemplify empowerment efforts in the context of a multi-year school intervention designed to develop the advocacy skills of ethnic minority students' with disabilities and promote attainment of transition-related goals. In the process of implementing the intervention, our research team had to instigate change, advocate, and/or mediate in multiple conflictual interactions between the various stakeholders in the schools. We faced both positive and negative consequences for our actions. We discuss the responsibilities of community psychologists in the process of empowering others and the implications for the practice of community research.     

Construct validity of the posttraumatic stress disorder checklist in cancer survivors: analyses based on two samples

The measurement of posttraumatic stress disorder (PTSD) is critically important for the identification and treatment of this disorder. The PTSD Checklist (PCL; F. W. Weathers and J. Ford, 1996) is a self-report measure that is increasingly used. In this study, the authors investigated the factorial validity of the PCL with data from 236 cancer survivors who received a bone marrow or stem cell transplantation. The authors examined the fit of these data with the clinical model of 3 symptom clusters for PTSD, as proposed in the Diagnostic and Statistical Manual of Mental Disorders, and alternative models tested in prior research. By using confirmatory factor analysis the authors found that a 4-first-order-factor model of PTSD provided the best fit. The relations of PTSD symptoms with sociodemographic and medical variables were also explored.     

Factors influencing newborns' preference for faces with eye contact

We investigated newborns' sensitivity to the direction of gaze of another's face by using a preferential looking technique. This study extends earlier work on a preference for faces with direct gaze in newborns. In Experiment 1, we replicate the basic finding of Farroni and colleagues that newborns prefer to look at faces with direct gaze. In Experiments 2 and 3, we establish that a preference for faces with direct gaze in newborns is present only within the context of an upright face and a straight head, suggesting that relatively primitive configuration-sensitive mechanisms may be operating. Overall, these results further the view that relatively simple perceptual biases in newborns may be an essential foundation for later social-cognitive development.     

Turnover intentions of the faculty at a teaching-focused university

Research on turnover in academia suggests faculty primarily resign to obtain higher salaries and for personal reasons; however, the samples of most such studies have been from research institutions. Correlates were examined for turnover intentions among 190 faculty members at a university that emphasized teaching. Although current turnover intention was low, seven measures of satisfaction explained 31.5% of the variability in turnover intent, and satisfaction with pay, work itself, and teaching/service load together explained 26% of the variance. Findings support the hypothesis that salary is an important element in explaining turnover consideration at teaching institutions. Although satisfaction with collegial relations was related significantly to turnover intent, it was not as important as some of the other characteristics.     

Task demand effects on postural control in older adults

The literature shows conflicting results regarding older adults' (OA) postural control performance. Differing task demands amongst scientific studies may contribute to such ambiguous results. Therefore, the purpose of this study was to examine the performance of postural control in older adults and the relationship between visual information and body sway as a function of task demands. Old and young adults (YA) maintained an upright stance on different bases of support (normal, tandem and reduced), both with and without vision, and both with and without room movement. In the more demanding tasks, the older adults displayed greater body sway than the younger adults and older adults were more influenced by the manipulation of the visual information due to the room movement. However, in the normal support condition, the influence of the moving room was similar for the two groups. These results suggest that task demand is an important aspect to consider when examining postural control in older adults.     

Identity and commitment in emergency teams

This paper adopts Tajfel's social identity theory perspective and applies it to the organizational context in order to study emergency intervention teams. Specifically, it is intended to explore the kind of social identification (professional, team, or organizational) prevalent among members of these organizations. It is intended, as well, to establish a clear distinction between two related, and often confused, concepts, i.e., organizational identification and commitment, and to discover which identification is more apt to predict the organizational outcomes of organizational citizenship behaviors and satisfaction. Our total sample consisted of 151 participants (firemen of the Madrid municipality and members of the army). It was found that organizational identification, as a kind of social identification, is different from organizational commitment, and that it is not its base nor one of its components, and that organizational identification, much as professional one, helps to explain peoples' behavior in organizations.     

Treatment of children with ADHD: psychopedagogical program at school versus psychostimulant medication

This study examined the impact of medication management compared to a psycho-educational program on parent and teacher ratings of children with combined type ADHD. The study lasted 14 weeks and included 50 children. 17 children took medication, 17 received psycho-educational intervention, and 16 children were assigned to the control group. The measures used were the IOWA Conners Scale, the School Problem Inventory, the Abbreviated Conners, and the DSM-IV Inattention-Disorganization and Hyperactivity-Impulsivity rating scales. Regarding teacher ratings, improvements were observed on: a) inattention and school problems in the medication group versus the control group; and b) hyperactivity symptoms in the psycho-pedagogical group versus the control and medication groups. Regarding to parent ratings, improvements were observed on: a)inattention in the psycho-pedagogical group versus the control and medication groups; and b) hyperactivity symptoms in the psycho-pedagogical group versus the control and the medication groups.     

Distinctiveness models of memory and absolute identification: evidence for local, not global, effects

Many models of memory assume that the probability of remembering an item is related to how distinctive that item is relative to all the other items in the set, with no distinction made between the contributions of near or far items. These “global” distinctiveness models do well in accounting for the ubiquitous serial position effects observed in numerous memory paradigms, including absolute identification. Here, we provide experimental confirmation of Bower's (1971) suggestion that, contrary to a fundamental prediction of global distinctiveness models, midseries items can be more discriminable than their immediate neighbours. We show that such data are consistent with a revised distinctiveness account in which the factor affecting discrimination performance is primarily the distinctiveness of an item relative to its close neighbours.