The Contributions of Political Life Events to Psychological Distress Among South African

The psychological consequences of adverse political experiences among South African youth were studied in a sample of 540 black and white adolescents from two age groups, evenly divided by gender. Three questionnaires were administered, measuring exposure to political life events, the presence of symptoms of psychopathology, and stressful personal life events during the previous 5 years. The first hypothesis, predicting a substantial contribution of stressful political experiences to psychopathology, was strongly supported; when stressful personal life events were partialed out, a significant effect for political life events remained both on general distress and symptomatology indices. The second hypothesis of a linear relation between exposure to political life events and severity of distress was also confirmed. The findings underscore the enduring impact on children's mental health of past apartheid policies in South Africa specifically, and adverse political environments in general.     

Social isolation and gender

This study investigated the relationship between gender and social support. It was found that men were more isolated than women although there were no gender differences in perceived adequacy (i.e., satisfaction with one's social support network) or network size. Given that both the adequacy and network size variables were associated with socially desirable responding but the isolation variable was not, the results suggest that the behaviorally oriented indicator of isolation was a better measure of the degree of social isolation than traditional subjective scales currently used by many researchers. This suggests that traditional measures of social support that incorporate the dimensions of network size and perceived adequacy of one's social support system need to control for socially desirable responding and that measures can and need to be developed that are not significantly influenced by this response set bias. Hence, the assessment of social support may need to be more multifaceted than is currently undertaken in many studies. Our finding that men reported being more isolated than women may be a function, in part, of the fact that the majority of the sample (76.7%) was single/did not live with a partner. Previous research has found that men generally get their emotional needs met by their spouses/partners while women often get their emotional needs met by their female friends. Consistent with the literature, and given that most of our respondents were single, this study supports the contention that men are generally more socially isolated than women because they do not create adequate emotional intimacy when they are not in partnership with a significant other.     

Explanations: What Factors Enhance Their Perceived Adequacy?

Factors that enhance the perceived adequacy of explanations for bad news were examined in three studies: two cross-sectional surveys and a simulation experiment. All studies found that the specificity of the explanation′s substance accounted for more variance in judgments of explanation adequacy than did the interpersonal sensitivity of the explanation′s delivery. Moderators of the relationship between explanation features and perceptions of explanation adequacy were found as well: These explanation features enhanced the perceived adequacy of explanations more when outcomes of greater, rather than lesser, severity were being explained, and when the explanation was delivered verbally instead of in writing. Theoretical and practical implications are discussed.     

Weight suppression is a robust predictor of outcome in the cognitive-behavioral treatment of bulimia nervosa

This study examined weight suppression (difference between highest premorbid weight and pretreatment weight) as a predictor of outcome in 188 outpatients with bulimia nervosa enrolled in a cognitive-behavioral therapy intervention. Participants who dropped out of treatment had significantly higher levels of weight suppression than treatment completers. Of participants who completed treatment, those who continued to engage in binge eating or purging had significantly higher levels of weight suppression than those who were abstinent from bingeing and purging. Results did not change when body mass index, dietary restraint, weight and shape concerns, or other relevant variables were controlled. Relinquishing bulimic behaviors and adopting normal eating patterns may be most feasible for patients who are closest to their highest premorbid weights.     

Interrater reliability and coding guide for nonpsychotic formal thought disorder

Reliable and valid assessment of abnormal speech patterns may enable earlier recognition of nonpsychotic disorders through characteristic speech patterns. This study sought to establish interrater reliability using a standardized guide for scoring. A scoring guide defining 27 elements (e.g., inappropriate self-reference, simple loss of goal, circumstantiality) of disordered thought was developed. The seminal work of Andreasen's and Holzman's groups provided 12 elements, and 15 new elements were suggested by clinical literature. Audiotaped interviews with 12 psychiatric inpatients, adults of both sexes and various ages hospitalized for acute management of nonpsychotic psychiatric disorders, provided speech samples for observation of disordered thought by two independent raters. Using the guide's definitions and accompanying examples of elements of disordered thought, reliability in scoring was high (kappa of .85 for agreement on the presence of any abnormal speech element and kappa values from .66 to 1.00 for agreement on the presence of individual elements).     

Correlations for the Stroop Color and Word Test with measures of reading and language achievement

The present investigation examined the relationships for scores on the Stroop Color and Word Test with measures of reading and language achievement within an adult population. The Stroop Color and Word Test, Nelson-Denny Reading Test, Woodcock-Johnson Psycho-Educational Battery-Revised, and Wide Range Achievement Test-3 were administered to 99 men ranging in age from 18 to 27 years. Pearson product-moment correlations indicated that the Stroop Word task was positively associated with scores on the WRAT-3 Spelling task, the Woodcock-Johnson Basic and Broad Reading tasks, and the Nelson-Denny Rcading Rate and Comprehension tasks. These and other significant relationships were discussed in terms of possible implications regarding the assessment of reading achievement.     

Working memory and stroop interference: an individual differences investigation

We investigated the claim that individual differences in working-memory capacity reflect limitations on the ability to inhibit task-irrelevant information and/or to maintain activation in the face of distracting or interfering events. Specifically, we investigated whether high- and low-capacity individuals differed in their susceptibility to interference on the Stroop task and whether high-capacity individuals employed a strategy for minimizing Stroop interference. In Experiment 1, we found that high-capacity participants showed substantial interference when conflict trials were infrequent, but almost no interference when conflict trials were frequent. In contrast, low-capacity participants showed substantial interference irrespective of the proportion of conflict trials. In Experiment 2, we found that high-capacity participants experienced substantial negative priming, slow responses when the to-be-named color was the irrelevant word on the previous trial. We discuss these results and their implications for high-capacity individuals' ability to reduce Stroop interference in light of both inhibitory and noninhibitory accounts of negative priming.     

Reducing child witnesses' false reports of misinformation from parents.

This study explored whether a source-monitoring training (SMT) procedure, in which children distinguished between events they recently witnessed versus events they only heard described, would help 3- to 8-year-olds to report only experienced events during a target interview. Children (N = 132) who witnessed science demonstrations and subsequently heard their parents describe nonexperienced events received SMT before or after a forensic-style interview. SMT reduced the number of false reports that 7- and 8-year-old children reported in response to direct questions but had no impact on the performance of younger children. Combined with earlier results, these data suggest a transition between 3 and 8 years of age in the strategic use of source-monitoring information to support verbal reports, such that only 7- and 8-year-olds generalize training to a difficult memory task that does not include mention of specific alternative sources.     

Behavior of college baseball players in a virtual batting task

A baseball batting simulation was used to investigate the information used to hit a baseball. Measures of spatial and temporal swing accuracy were used to test whether batters (a) use speed to estimate pitch height, (b) initiate a constant swing duration at a fixed time to contact, (c) are influenced by the history of previous pitches and pitch count, and (d) use rotation direction. Batters were experienced college players. Pitch speed variance led to predictable spatial errors, and spatial accuracy was worse than temporal accuracy. Swing duration was generally variable. The history of the previous 3 pitches and the pitch count had significant effects on accuracy, and performance improved when rotation cues were added. There were significant effects of expertise on hitting strategy.