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191.
Norbert L. Kerr Douglas L. Harmon James K. Graves 《Journal of applied social psychology》1982,12(1):12-29
An assumption underlying the common practice of permitting a juror to serve on more than one jury is that jurors can and will reach multiple verdicts independently. Two studies were carried out to examine this assumption. The first experiment had mock jurors consider several cases in succession. Subjects exhibited a clear contrast effect on the strength of evidence; those subjects who initially saw strong prosecution cases were less likely to convict in a moderate test case than those who had initially seen wcak prosecution cases. In the second study, the contrast hypothesis was tested for actual juries' verdicts through archival analyses. The results of this field study paralleled those obtained in the experimental study. The discussion focused upon alternative theoretical explanations for these results, implications for trial practice, and the strengths and weak-nesses of the methodologies applied in these studies. 相似文献
192.
124 junior high school students (Grades 5 to 8) from a small school district in north central Kansas completed the Beck Depression Scale, the Maze test, and the Which-to-Discuss test. Background information, such as age, sex, grade, and marital status of parents, were also collected. There were no significant differences between boys and girls of divorced and nondivorced parents or across grades for scores on the Which-to-Discuss (specific curiosity) and depression, but boys scored significantly higher on the Maze test (diversive curiosity). No differences were noted between the students of divorced and nondivorced parents or across grades. Scores on Which-to-Discuss test and Maze test were not significantly correlated, but scores on one Maze test and depression correlated positively and significantly. When these students scored as more depressed, although in the normal range, they tended to score higher on diversive curiosity. 相似文献
193.
Diving, adaptation, and Fitts law 总被引:4,自引:0,他引:4
Kerr R 《Journal of motor behavior》1978,10(4):255-260
To assess Welford's dual controlling factor interpretation of Fitts' law, 20 scuba divers performed a reciprocal tapping task. In an attempt to separate the two factors, the subjects were tested on land and underwater. This does not change the basic parameters of the task but does put the subjects under informational stress, in that underwater the movement is less ballistic in nature and should require the processing of more information (feedback) in each tap. On land, the contributions of movement amplitude and precision were approximately equal. However, the relative changes in contribution of these factors to movement time underwater suggests that these parameters do in fact represent separate controlling factors. 相似文献
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For people with mental illness, diminished quality of life and loss of personal goals does not result solely from the symptoms, distress, and disabilities caused by their psychiatric disorder. Quality of life and personal goals are also hindered by people who embrace the stigma that accompanies mental illness and mental health care. This paper reviews evidence of the impact of mental illness stigma and strategies for seeking to ease its impact. To achieve these goals, we (a) describe the ways in which stigma harm people with mental illness, (b) summarize models that explain the development and maintenance of these stigmatizing effects, and (c) review strategies that have been shown to decrease the impact of stigma. Concerns about stigma are on the political agendas of many mental health advocacy groups. It has recently also become the focus of extensive research. Our goal in this paper is to balance the practical concerns raised by mental health advocates against data that support or contradicts specific assertions. 相似文献
197.
Selection and socialization have been implicated in friendship homophily, but the relative contributions of each are difficult to measure simultaneously because of the nonindependent nature of the data. To address this problem, the authors applied a multiple-groups longitudinal actor-partner interdependence model (D. A. Kashy & D. A. Kenny, 2000) for distinguishable dyads to 3 consecutive years of intoxication frequency data from a large community-based sample of Swedish youth. Participants, ranging from 12 to 18 years old (M = 14.35, SD = 1.56) at the start of the study, included 902 adolescents (426 girls and 476 boys) with at least one reciprocated friend during at least one time point and 212 adolescents (84 girls and 128 boys) without reciprocated friends at any time. Similarity estimates indicated strong effects for selection and socialization in friends' intoxication frequency. Over time, younger members of these dyads had less stable patterns of intoxication than older members, largely because younger partners changed their drinking behavior to resemble that of older partners. 相似文献
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199.
Prevalence of suicidal ideation among boys and men assessed annually from ages 9 to 29 years 总被引:1,自引:0,他引:1
In a sample of 206 boys (90% Caucasian), self-reported suicidal ideation (SI; ages 12 to 29) and parent-reported youth suicidal talk (ages 9 to 20) were assessed annually by questionnaire. One-week point prevalence of self-reported SI ranged from 2.6% to 16.3%. New cases emerged across adolescence; by age 29, 57.3% self-reported SI at least once. SI was associated with clinically significant elevations on concurrent depressive symptoms. Nearly one quarter (24.8%) of parents reported suicidal talk by their son by age 20. Parent- and self-reports showed low correspondence. SI was more common than retrospective studies suggest. Parent-reports and one-time self-reports are likely to miss large numbers of adolescent boys who may be at risk. 相似文献
200.
Kerr NL Messé LA Seok DH Sambolec EJ Lount RB Park ES 《Personality & social psychology bulletin》2007,33(6):828-841
Sometimes group work conditions lead to motivation gains rather than to social loafing. Two theoretical explanations for the K?hler motivation gain effect are identified, one stressing social comparison and a second stressing the indispensability of one's effort to the group. The results of three new experiments are reported. Experiment 1 suggested that both explanations are valid and contribute to the K?hler effect. Prior studies suggested that there might be gender differences in the relative importance of these two explanatory processes. Experiment 2 confirmed this suggestion. In Experiment 3, the gender difference was eliminated by priming women with a goal (viz., competition) presumed to be chronically more important to men. It is argued that the relative importance of these two motivational processes will depend on the immediate and chronic importance attached to more personal (viz., to achieve a favorable social comparison) versus collective (viz., to contribute to one's group) goals. 相似文献