Facilitating information exchange in small decision-making groups

The present study examined the effects of several conditions on the information flow during unstructured discussion in small groups. We build on the experimental work of Stasser and his colleagues on information sampling. The results of their research suggest that groups often fail to exchange information effectively. Three experiments with a 2×2 factorial design were set up to look for conditions that could facilitate the exchange of unshared information in particular. In a first study, we replicated the experiment of Stasser and Titus (1987). The main results of the original study were confirmed; additional discussion content analysis of video-recorded material made further differentiation possible. Apart from the mere mentioning of items during discussion, the reactions to and the repetition of the items were analysed. In the second experiment we introduced partially shared information and we made group members aware of the unique information that they can contribute. In the third experiment the nature of the task was manipulated and an attempt was made to prevent an information bias in favour of decision-supporting items. Conditions that significantly enhance the dissemination of unshared information were found. An empirical basis was gathered so that the guidelines for effective information sampling as they were laid down by Stasser (1992) could be reformulated.     

A Meta-Analysis of Research on Protection Motivation Theory

This article reports the first meta-analysis of the literature on protection motivation theory (Rogers, 1975, 1983; Rogers & Prentice-Dunn, 1997), a model of disease prevention and health promotion that has generated research for over two decades. The literature review included 65 relevant studies ( N = approximately 30,000) that represented over 20 health issues. The mean overall effect size ( d += 0.52) was of moderate magnitude. In general, increases in threat severity, threat vulnerability, response efficacy, and self-efficacy facilitated adaptive intentions or behaviors. Conversely, decreases in maladaptive response rewards and adaptive response costs increased adaptive intentions or behaviors. This held true whether the measures were based on intentions or behaviors, and suggests that PMT components may be useful for individual and community interventions.     

AVERY DULLES,TEACHING AUTHORITY IN THE CHURCH,AND THE ‘DIALECTICALLY TENSE’ MIDDLE: AN AMERICAN STRATEGIC THEOLOGY

Father Dulles is now largely thought by friend and foe alike to be one of the most forceful voices for a renewed orthodoxy in the Church. Liberals see him as having turned his back on his younger radicalism; like many an older man, they suggest, he has grown more conservative with age. His experiences with certain forms of liberal Catholicism, while not changing his ideas about the Church, seemed to have alerted him to their potential for disaster. 1     

THE EFFECT OF TELEVISION AND RADIO ON CHILDREN'S CREATIVITY

The literature on creativity posits that creative abilities are stable and relatively impervious to short-term interventions. Several studies have, however, reported differential effects of media on children's imaginative play and thinking. The results of these studies are difficult to interpret owing to their reliance on nonstandardized measures of creativity. The present study examines the relative effects of television versus radio on children's creativity. Third and sixth graders were presented a story on television or radio and were then given an adapted version of the “Just Suppose” test of divergent thinking developed by Torrance (1974). Responses were scored in terms of ideational fluency, flexibility, and originality. The results indicated that the two media did not have a differential effect on children's creativity.