Some applications of attribute prediction theory to psychophysics

The following development is a coordination of certain aspects of mental test methods and psychophysics. The biserial and triserial prediction equations of the Katzell-Cureton theory are utilized to reformulate the determination of absolute and differential limens from data produced by the constant method.     

A Multilevel Analysis of the Effects of Parents, Teachers and Schools on Student Values

Do schools influence the values of the students who attend them? This study examines the influence of parents, peer groups, teachers and the schools on student values as assessed by the Schwartz Value Survey. A sample of students at Grade 12 was chosen from 11 South Australian secondary schools of a wide variety of types, and the students, their parents and their teachers completed the Value Survey, and students also provided sociodemographic information. The data were analysed using the HLM multilevel analysis program with respect to the four higher order value components, namely self-transcendence, self-enhancement, conservation and openness to change in order to identify student level and school level effects on the values held by the students. Results showed that sex of student, language background, the Christian involvement of the student, parental social position and the values held by parents and peer groups had much greater effects upon the students' values than the schools and their teachers. Further research involving a larger number of schools in a wider variety of settings is suggested to build on this exploratory study.     

Randomized controlled trial of a brief problem-orientation intervention for suicidal ideation

Empirical evaluations suggest that problem orientation, the initial reaction to problems, differentiates suicidal youth from nonchnical controls and nonideating psychiatric controls. One promising area for intervention with suicidal youth relates to enhancing this specific coping skill. Nonclinical participants (N = 110) with active suicidal ideation were randomly assigned to receive a brief problem-orientation intervention or a control procedure. The current study evaluated the benefits of a brief prevention intervention based on the Problem-Solving Therapy model. Exposure to a brief video intervention regarding problem solving and coping skills was sufficient to elicit significant decreases in suicidal ideation and depression, but the intervention did not elicit improvements in problem orientation or other problem-solving abilities. These findings provide preliminary support for a brief, video-based problem-solving and coping skills module. However, considerable work in developing secondary prevention interventions remains.     

The theory of planned behavior and healthy eating.

Application of the theory of planned behavior (TPB) to healthy eating in 144 health promotion clinic attendees is reported. Respondents completed self-report TPB measures after the clinic (Time 1) and 6 months later (Time 2) with a measure of perceived past behavior. Intention stability was assessed on Time 1-2 differences. Six years later (Time 3), respondents completed measures of healthy eating intentions and behavior. Intentions were predicted by attitudes, perceived behavioral control, and perceived past behavior (cross-sectionally). Healthy eating behavior (Time 3) was predicted from intentions (Time 2). As intention stability increased, intentions and perceived past behavior became stronger and weaker predictors of behavior, respectively. Implications for understanding health cognitions in long-term performance of health behavior are discussed.     

2007 annual report

Presents the 2007 Annual Report from the American Psychological Association (APA). Included are the APA presidential address, the 2008 American Psychological Foundation (APF) Gold Medal and Teaching Awards, and reports from Association directorates.     

Cross-sectional and prospective associations between cognitive appraisals and posttraumatic stress disorder symptoms following stroke

This study examined cross-sectional and prospective associations between cognitive appraisals and posttraumatic stress disorder (PTSD) symptoms following stroke. While in hospital, stroke patients (n=81) completed questionnaires assessing cognitive appraisals (i.e., negative cognitions about the self, negative cognitions about the world, and self-blame) and PTSD symptoms. PTSD symptoms were assessed again 3 months later when all patients had been discharged from hospital (n=70). Significant correlations were found between the time 1 measures of negative cognitions about the self and the world, but not self-blame, and the severity of PTSD symptoms measured at time 1 and at time 2. Regression analyses revealed that cognitive appraisals explained a significant amount of variance in the severity of PTSD symptoms at time 1, with negative cognitions about the self-emerging as a significant predictor. In contrast, time 1 cognitive appraisals were unable to explain additional variance in time 2 PTSD severity over and above that explained by time 1 PTSD severity. The findings therefore provide only weak support for Ehlers and Clark's cognitive model of PTSD.     

The effects of alcohol and the salience of aggressive cues on triggered displaced aggression

Alcohol increases the aggression-augmenting effects of provocation. Theories of alcohol and aggression suggest that impaired cognitive processing induced by acute intoxication leads individuals to process aggression-inducing social cues differently depending on whether they are high or low in salience. We examined the effects of intoxication and aggressive cue salience within the triggered displaced aggression paradigm. An ethnically diverse sample of 74 primarily young adult participants (40 men and 34 women; M=23.28, SD=3.14 years) were recruited from the university community and surrounding area. All participants were provoked by an experimenter, randomly assigned to a 2 (alcohol condition: alcohol vs. placebo) x 2 (trigger salience: high vs. low salience) between-subjects design, and then given the opportunity to aggress against the undeserving triggering agent. As expected, intoxication combined with a salient triggering cue elicited the most displaced aggression among all conditions. These results provide the first evidence that the effect of alcohol on triggered displaced aggression is moderated by the salience of the triggering event.     

Submitting to defeat: social anxiety, dominance threat, and decrements in testosterone

ABSTRACT— Although theory suggests a link between social anxiety and social dominance, direct empirical evidence for this link is limited. The present experiment tested the hypothesis that socially anxious individuals, particularly men, would respond to a social-dominance threat by exhibiting decrements in their testosterone levels, an endocrinological change that typically reflects pronounced social submission in humans and other animals. Participants were randomly assigned to either win or lose a rigged face-to-face competition with a confederate. Although no zero-order relationship between social anxiety and level of testosterone was observed, testosterone levels showed a pronounced drop among socially anxious men who lost the competition. No significant changes were observed in nonanxious men or in women. This research provides novel insight into the nature and consequences of social anxiety, and also illustrates the utility of integrating social psychological theory with endocrinological approaches to psychological science.