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131.
Norbert L. Kerr Ann C. Rumble Jaap W. Ouwerkerk Marcello Gallucci 《Journal of experimental social psychology》2009,45(4):603-613
In social dilemmas, where personal welfare is in conflict with collective welfare, there are inherent incentives to act non-cooperatively. Moreover, there is evidence that the example of a few uncooperative group members (“bad apples”) is more influential than the example of comparable numbers of cooperative members (a bad apple effect). Two studies are reported that examine the functional relationship between the number of likely bad apples and individual cooperation, and whether and when the threat of social exclusion for uncooperative behavior may effectively counter the temptation to follow the example of such “bad apples”. It is shown that (a) the threat of exclusion is sufficient to counter the temptation to follow a few bad apples’ example, (b) such threats cannot, however, overcome the cooperation-degrading effects of large numbers (e.g., a majority) of bad apples, and (c) the effectiveness of such threats may be greater in relatively smaller groups. 相似文献
132.
Kerr JH 《Aggressive behavior》2009,35(1):41-48
This article focuses on two recent incidents of serious on-field violence in sports and the legal consequences for those involved. The two incidents occurred in Dutch football (soccer) and became infamous owing to the nature of the violent incidents and widespread media coverage. The legal outcomes of these two incidents are described, and some of the difficulties that legal authorities face in considering assaults on the sports field are discussed. A new way of categorizing such violent incidents and the motivation behind them, based on an established psychological theory [reversal theory, Apter, 1982, 2001] is proposed. Taken along with the other points made in this article, being aware of when and how individuals cross the boundaries between play and anger, power or thrill violence may provide an additional perspective to making informed decisions about illegal violent acts on the sports field. 相似文献
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The Wakonse Conference on College Teaching 总被引:1,自引:0,他引:1
Joseph A. Johnston Barbara A. Kerr William B. Bondeson Robert N. Hansen Charles D. Claiborn 《Journal of counseling and development : JCD》1994,72(5):480-484
A Wakonse Conference on College Teaching is a week-long retreat that provides renewal and support for college teaching. Offered in a secluded environment away from campus, it engages faculty from various colleges in demonstration and discussion of what makes teaching effective and rewarding. Wakonse is a grassroots movement within the academy to bring teaching to the forefront and make it central to the mission of higher education. Support for what makes Wakonse effective can be found in much of the student development literature. 相似文献
136.
Anchoring and adjustment is a pervasive bias in which decision makers are influenced by random or uninformative numbers or starting points. As a means of understanding this effect, we explore two limits on anchoring. In Experiments 1 and 2, implausibly extreme anchors had a proportionally smaller effect than anchors close to the expected value of the lotteries evaluated. In Experiments 2 and 3, anchoring occurred only if the anchor and preference judgment were expressed on the same scale. Incompatible anchors and response modes resulted in no anchoring bias. A confirmatory search mechanism is proposed to account for these results. 相似文献
137.
Beth Kerr Janet Davidson Judy Nelson Stephen Haley 《Journal of experimental child psychology》1982,34(3):526-541
Adults and 8-, 10-, 12-, and 14-year olds completed a serial reaction-time task with two stimuli mapped to each of two responses and 100-, 500-, and 1000-msec response-stimulus intervals (RSIs). Trials were classified as (1) identical (same stimulus and same response on two consecutive trials), (2) response equivalent (different stimulus but same response on two consecutive trials), or (3) different (different stimulus and different response on two consecutive trials). Identical and different trials were compared as a general indication of repetition effects. Response-equivalent minus identical reaction time identified stimulus contributions, and different minus response-equivalent reaction time identified response contributions. Adults received a repetition advantage at all RSIs and children received a repetition advantage at 500- and 1000- but not 100-msec RSIs. Stimulus contributions accounted for the repetition effect for both adults and children. At the 500- and 1000-msec RSIs, both the overall repetition effect and stimulus contribution were positive and decreased in magnitude as age increased. The response contribution was independent of RSI and was negative for 8- and 10-year-olds and near zero or positive for older performers. At the longer RSIs, positive stimulus contributions were sufficient to overcome the negative response contributions present for younger children. 相似文献
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Beth Kerr 《Memory & cognition》1973,1(4):401-412
Man possesses a central system of limited capacity. Theorists at first described this system as a single limited capacity channel Two current theoretical alternatives to single-channel theory are (1) the undifferentiated capacity hypothesis that man possesses a pool of capacity units so that interference occurs oniy if the total number of capacity units that mental operations demand exceeds the system limit and (2) the hypothesis that some, but not all, mental operations require space in a limited capacity central mechanism and that any operation that requires space will interfere with any other operation that also demands space. Time on task fails as a sensitive measure of capacity demands because some task components require time but not full processing capacity. The secondary task technique uses the interference between a primary task and a secondary task to assess the extent to which the primary task makes processing demands on the central limited system. Processing demands have been measured for five categories of mental operation: (1) encoding, (2) multiple input, (3) rehearsal, (4) transformation, and (5) responding. 相似文献
140.
Joyce L. Kerr 《Attention, perception & psychophysics》1971,9(3):375-378
Visual acuity thresholds were determined for two Os with a 3-deg square grating target presented for 0.2 sec within a steadily illuminated surround field matched in luminance to the test field. Measurements were made in the fovea, and at 10, 20, and 30 deg along the horizontal meridian of the temporal retina, at luminances between ?3.5 and 3.0 log mL. The foveal acuity-luminance functions showed a large increase in acuity up to 1 or 2 log mL, but at peripheral locations very little increase occurred above 0 log mL. The maximum acuity reached at photopic luminances dropped sharply with increasing eccentricity. Visual acuities were two to four times higher than those previously reported for the periphery; methodological and target differences are presented to account for this result. 相似文献