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Bairj Donabedian Associate Professor 《The Information Society》2006,22(3):121-135
In the reconciliation of rational-choice and social-influence approaches to media choice offered here, the choice process is decomposed into two subprocesses. In the first subprocess—that of rational choice—decisional ambiguity frustrates complete optimization. Optimization is partial, yielding a set of effectively interchangeable media alternatives over which the user is indecisive. In the second subprocess—that of social influence—imitation, deference, and other cues act on the set of interchangeables, yielding a single ultimate choice. If in the social-influence subprocess there are benefits to coordinating with others, group choice crystallizes around a single media alternative. If these benefits are absent, individual choice remains idiosyncratic, with each decision maker making random choices within the set of interchangeables. In organizational life, media choice transpires sequentially, with each choice conditioning a succeeding one. In its dynamic form, the present model explicitly incorporates such sequential environments: The twofold choice process transpires iteratively within individual decision sites (in the multiple purchasing decisions of a committee, for example) and sequentially across decision sites (from committee to individual, for example). The model generates considerable empirical implications. As decisional ambiguity grows, the rational-choice component of the choice process shrinks, implying upper-bound conditions for the explanatory power of rational-choice statistical models. 相似文献
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Sherman S 《Endeavour》2004,28(4):156-160
The English translation of Pierre Pomet's A Compleat History of Druggs (1712) demonstrates how the expansion of print culture altered the way that scientific ideas were communicated. Although it makes utilitarian claims, the text of the History departs from the style of contemporary British pharmacopoeias by emphasizing the exotic aspects of drugs. In this sense, the text exemplifies how Enlightenment science could be sold to a cross-over audience interested as much in the fantastical as in the quality and operation of drugs. 相似文献
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Sandra J. Balli 《Teaching and Teacher Education》2011,27(2):245-251
This study focused on past excellent teachers’ classroom management strategies from the perspective of 148 pre-service teachers. The purpose of the study was to examine how pre-service teachers’ memories reflect classroom management models that are typically taught in teacher education coursework prior to their study of those models, as well as to explore memories that did not fit a particular model. Results indicated that pre-service teachers related episodes that clustered on establishing rules, but were less likely to relate experiences based on other strategies such as withitness, smooth transitions, or formal classroom meetings. Implications for teacher education are explored. 相似文献
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This study examines whether levels of father engagement (e.g., verbal stimulation, caregiving, and physical play) vary by race/ethnicity using a model that controls for fathers' human capital, mental health, and family relationships. It also tests whether the models work similarly across race/ethnic groups. Its sample of N=5,089 infants and their families is drawn from the Early Childhood Longitudinal Study - Birth Cohort (ECLS-B). We found that, after including controls, African American and Latino fathers had higher levels of engagement in caregiving and physical play activities than White fathers. There were no differences in verbal stimulation activities across race/ethnicity. Fathers' education (college level) predicted more verbally stimulating activities whereas fathers' report of couple conflict predicted less caregiving and physical play. Although levels of engagement differed across the groups, the overall models did not differ by race/ethnicity, except for physical play. African American mothers who reported high levels of depressive symptoms had partners who engaged in more physical play than White mothers with high levels of depressive symptoms. 相似文献
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Many studies have examined associations between children's theory of mind and social behavior with familiar peers, but to date none have examined how theory of mind might relate to behavior toward unfamiliar peers in a play setting. Forty-four 4-year-olds (21 girls, 23 boys) participated in standard theory-of-mind tasks and in a play session with 3 or 4 other children who were unfamiliar. Children were also tested on general vocabulary ability. No relations were found between theory of mind and social engagement. However, positive associations were found between theory of mind and time spent observing, but not interacting with, other children. Possible explanations of the links between theory of mind, temperament, and social interest are considered. 相似文献
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