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231.
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News editors listed online aggression as one of the main constraints to audience participation and debate in the media. However, previous studies offer contradictory evidence on how aggression affects the amount and civility of user participation. Furthermore, a large portion of these studies focus on the Anglo-Saxon context and follow an experimental design. This study addresses these issues through a content analysis of over 26,000 news comments from two Portuguese newspapers, testing how aggression in comments relates to the number of replies it generates and the aggressiveness of these replies. Results show that aggression generates more aggression in comment sections, but may also increase participation. The latter effect is moderated by the article topic, an important caveat that may explain different outcomes in previous works. The practical implications of these findings and paths for future research are discussed.  相似文献   
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The present study adopted an intergroup approach to information sharing and ratings of work team communication in a public hospital (N?=?142) undergoing large-scale restructuring. Consistent with predictions, ratings of communication followed a double ingroup serving bias: while team members reported sending about the same levels of information to double ingroup members (same work team/same occupational group) as they did to partial ingroup members (same work team/different occupational group), they reported receiving less information from partial ingroup members than from double ingroup members and rated the communication that they received from partial ingroup members as less effective. We discuss the implication of these results for the management of information sharing and organizational communication.  相似文献   
235.
Books in review     
DYNAMICS OF IDEALISM: WHITE ACTIVISTS IN A BLACK MOVEMENT. By N.J. Demerath, III, Gerald Marwell, and Michael T. Aiken. San Francisco: Jossey‐Bass Inc., Publishers, 1971. $9.75.

TOMS, COONS, MULATTOES, MAMMIES, AND BUCKS: AN INTERPRETIVE HISTORY OF BLACKS IN AMERICAN FILMS. By Donald Bogle. New York: The Viking Press, 1973. $12.50.

RADICALS AND MILITANTS: AN ANNOTATED BIBLIOGRAPHY OF EMPIRICAL RESEARCH ON CAMPUS UNREST. By Kenneth Keniston in collaboration with Mary‐Kay Duffield and Sharon Marti nek. Lexington, Mass: D.C. Heath and Company, 1973. $15.00  相似文献   
236.
Abstract

School violence is of increasing concern to educators worldwide in the wake of tragedies such as the one in Littleton, Colorado. This article explores how hate group web sites, violent computer games, and related Internet activities are delivering material to young people with hostile and violent content. The Internet is also serving as a new vehicle for expression among students, sometimes conveying their messages of despair and hopelessness. The article discusses ways that teacher educators can equip future teachers to deal with these issues. It also examines what some schools and communities are currently doing to confront these issues and proposes ways to integrate Internet considerations into anti‐violence and mental health programs.  相似文献   
237.

The realities of Indian belief and existence have become so misunderstood and distorted at this point that when a real Indian stands up and speaks the truth at any given moment, he or she is not only unlikely to be believed, but will probably be contradicted and "corrected" by the citation of some non-Indian and totally inaccurate "expert." More, young Indians in universities are now being trained to see themselves and their cultures in terms prescribed by such experts rather than in the traditional terms of the tribal elders ?. In this way, the experts are perfecting a system of self-validation in which all semblance of honesty and accuracy is lost. This is not only a travesty of scholarship, but it is absolutely devastating to Indian societies. (Deloria, as cited in Rose, 1992, p. 404)  相似文献   
238.
Evaluation of large-scale educational programs is problematical because of inherent bias in the assignment of treatment and comparison groups. As a result, the ANOVA design is inapplicable, and even ANCOVA designs can give rise to serious regression artifacts. Data from the Follow Through Program are used to illustrate this point: samples were kindergarteners in the Responsive Education model and in best-match comparison classrooms. The criterion variable was MRT readiness level at posttest. Lord’s True Scores ANCOVA was shown to be a more powerful method in correcting for initial differences than the conventional ANCOVA. These data also were used to illustrate the problem of non-uniformity of program implementation across sites and classrooms. An index of implementation level by classroom was used to predict outcome levels, and the potential of this approach as an adjunct in comparative analysis was discussed.  相似文献   
239.
Marsh and Hau (1996) based the assertion that parsimony is not always desirable when assessing model fit on a particular counterexample drawn from Marsh's previous research. This counterexample is neither general nor valid enough to support such a thesis. More specifically, the counterexample signals an oversight of extant, stochastic models justifying correlated uniquenesses, namely, moving-average and autoregressive moving-average models. Such models provide theoretically plausible motives for a priori specification of error correlations. In fact, when uniquenesses are correlated, stochastic models other than the conventional simplex and quasi-simplex models must be tested before positive identification of the process is possible (Sivo, 1997). In short, exchanging the mechanistic penalties for model complexity for the mechanistic specification of untenable measurement-error covariances offers no solution. Parsimony has not been dismissed based on the argument Marsh and Hau presented concerning longitudinal data.  相似文献   
240.
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