Cognitive processes in well-defined and ill-defined problem solving

We investigated the relationship between two kinds of problem solving using Kitchener's model of hierarchical cognitive processing. We predicted that performance on well-defined problems (i. e. those with a single, guaranteed solution) would be independent of ill-defined problems (i. e. those with multiple, non-guaranteed solutions). We also predicted that self-reported epistemic beliefs (i. e. assumptions about the nature and acquisition of knowledge) would be related to ill-defined, but not well-defined, solutions. Results confirmed these predictions. We concluded that well-defined and ill-defined problems require separate cognitive processes and that epistemic beliefs play an important role in ill-defined problem solving. These findings supported Kitchener's three-level model of problem solving.     

Effects of chlorpromazine on lateralization, cued reaction time, and dichotic listening

In a double-blind cross-over design sixteen subjects took 50 mg of chlorpromazine or placebo in tablet form 2 hours prior to completing a dichotic listening and simple reaction time task with and without warnings. In the simple reaction time task, blocks of 80 stimuli were presented to each ear with and without warning cue under drug and placebo conditions. On the dichotic listening task the expected right ear advantage for reporting digits was obtained. While the drug had no main effect on the number of errors, there were more trials on which an ear advantage was present than in the placebo condition. In the reaction time task there were main effects of drug, warning cue and foreperiod: warnings facilitated reaction; chlorpromazine retarded reaction; and reaction times were most facilitated by warning foreperiods in excess of 1200ms. Several findings were of interest: On uncued trials, with placebo, right ear responses were faster than those for stimuli presented to the left ear. Drug also interacted with foreperiod duration. These results were interpreted in the light of Tucker and Williamson’s (1984) review of the role of Pribram and McGuinness’s Arousal and Activation sytems in lateralized behavior.     

Competing on all fronts: Achievement orientation and disordered eating

Strikingly high prevalence rates of symptoms of disordered eating among college women have been documented. The question arises as to whether one aspect of the college experience, achievement orientation, is associated with disordered eating. Competing hypotheses may be generated regarding the relationship between achievement orientation and disordered eating, with arguments for either a positive or negative relationship. The Work and Family Orientation Questionnaire (WOFO) and the Disordered Eating Symptoms Scale (DESS) were administered to 668 female undergraduate college students. Multivariate analysis of the WOFO subscales revealed that women with high levels of disordered eating obtained significantly higher scores on the Competitiveness subscale than women with low DESS scores. These findings support hypotheses of a positive relationship between competitiveness and disordered eating.     

Factors associated with responses to sexual harassment and satisfaction with outcome

This study examined contextual and behavioral factors and types of responses to sexual harassment in relation to harassed employees' satisfaction with the outcome of sexual harassment situations. Subjects were 105 male and female faculty and staff members (89.5% Caucasian; 5.7% multiethnic/multicultural; 4.8% unspecified) employed by a midwestern university who reported experiencing unwanted sexual attention on the job. Results undicated that employees responded more strongly to unwanted sexual behavior if they perceived it as sexual harassment and if they perceived their work climate as encouraging the problem. Harassed employees' gender, power, and perceptions of the work climate were all associated with their satisfaction with the situation outcome. Although making a formal or informal complaint was not associated with greater satisfaction, talking to the harasser without using aggressive communication strategies increased the likelihood of a satisfactory outcome for the employee. Talking to family or friends, a response used by women more often than men, was associated with dissatisfaction. Suggestions for further research are discussed.This research was primarily funded by the Center for Public Affairs Research at the University of Nebraska at Omaha. The authors gratefully acknowledge the research assistance of Jami Winters, Gena Ritter, Sarah Holmes, Kim Gangwish, and Mary Lou Costanzo.     

Storytelling and Coping With Stressful Events1

Three studies explored the coping benefits and limitations of stories people hear about others undergoing similar stressful events. In Study One, cancer patients reported that positive stories about other patients were preferable to and more helpful than negative stories, yet negative stories were more commonly told. Study Two manipulated the valence and source of stories told to college students facing midterm exams. Stories with positive endings and those relayed by expert sources were regarded more positively than negative stories and those told by nonexperts. Study Three manipulated the valence and informativeness of stories in a similar college sample. Positive and informative stories were rated more favorably, although these effects were independent of each other. Implications for social comparison and social support are discussed.     

Validation of a role-play measure of children's social skills

A videotape-administered role-play test of children's social skills was developed and its psychometric properties tested. Performance criteria for the test were derived from popular children's ratings of the effectiveness of different role-play responses. The test was administered to 157 fourth- and fifth-grade boys and girls who had been classified as popular, average, neglected, or rejected, on the basis of sociometric testing. The test evidenced good interrater, test-retest, and internal consistency reliabilities. Children's role-play performance correlated significantly with teacher ratings of social competence and with peer-liking ratings. Neglected children performed more poorly on the role-play test than popular children. When differences in intelligence among social status groups were statistically controlled, social status groups did not differ on the role-play test. Results of the discriminant analyses support the conclusion that teacher ratings are better than role-play tests for identifying rejected children, whereas role-play tests and measures of intelligence appear more accurate than teacher ratings for identifying neglected children.     

Modality effects in the coding reproduction of rhythms

The temporal coding assumption is that time of presentation is coded more accurately for auditory events than for visual events. This assumption has been used to explain the modality effect, in which recall of recent auditory events is superior to recall of recent visual events. We tested the temporal coding assumption by examining the coding and reproduction of quintessentially temporal stimuli-rhythms. The rhythms were produced by sequences of short and long auditory stimuli or short and long visual stimuli; in either case, the task was to reproduce the temporal sequence. The results from four experiments demonstrated reproduction of auditory rhythms superior to that of visual rhythms. We conclude that speech-based explanations of modality effects cannot accommodate these findings, whereas the findings are consistent with explanations based on the temporal coding assumption.