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Isaac Levi 《Journal of Applied Logic》2009,7(4):364-376
This essay has two objectives: (1) To offer a general motivation for the use of sets of probabilities to represent states of credal probability judgment. Doubt as to which of rival answers to a given question is true is representable by the set of potential answers that have not ruled out as impossible. Doubt concerning probability is representable by the set of probability distributions over potential answers that are not ruled out as impermissible to use in delibration. (2) To defend a more specific thesis that the set of permissible probability distributions ought to be convex. 相似文献
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Isaac Prilleltensky Geoffrey Nelson 《Journal of community & applied social psychology》2000,10(2):85-105
In order to foster the well‐being of children and families we propose a shift in the priorities of psychological and social interventions. Following a brief discussion of the concept of wellness, we present a framework for interventions to promote child and family wellness. Psychological and social intervention strategies to promote child and family wellness are then reviewed and interpreted in terms of the framework. Recommendations for changing priorities for programmes and policies are based on the framework and a review of the effectiveness of existing interventions. Copyright © 2000 John Wiley & Sons, Ltd. 相似文献
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There is an important class of conditionals whose assertibility conditions are not given by the Ramsey test but by an inductive extension of that test. Such inductive Ramsey conditionals fail to satisfy some of the core properties of plain conditionals. Associated principles of nonmonotonic inference should not be assumed to hold generally if interpretations in terms of induction or appeals to total evidence are not to be ruled out. 相似文献
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In order to analyse efficacy, effectiveness and efficiency of several depression secondary prevention programs, three group interventions were developed in Primary Care Centres: cognitive-behavioral therapy, promotion of one's coping resources therapy (just paying attention to abilities, without training) and social support. The sample was composed by 60 people with from-mild-to-moderate depressive symptoms, who were randomly assigned either to any of the treatments or to a control group (waiting list). Psychopathology, quality of life and attendance to mental health services variables were assessed at pretest, posttest and two follow-up evaluations, 6 and 12 months afterwards. Outcomes: both therapies had more efficacy, effectiveness and efficiency compared to the social support group, and this one was better than the waiting list. 相似文献
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Are statistical hypotheses covering laws? 总被引:1,自引:0,他引:1
Isaac Levi 《Synthese》1969,20(3):297-307