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51.
Clinical social workers highly value client self-determination yet little is known about how the practitioner applies the concept in ongoing practice. In a small exploratory study, 20 social workers, randomly selected from Utah's licensure list, were interviewed in depth about decision-making related to client self-determination. Even in a small, relatively homogeneous population, enormous variations were found in the application of the principle. 相似文献
52.
This study examines the importance of innovation leadership in cultivating the strategic fit of an organization with its environment, and enhancing various economic, relationship, and product performance outcomes. It thus explores how innovation leadership enables a firm to change and adapt to its external environment and by implication enhance its performance. The results of data collected from 117 firms show that innovation leadership, both directly and through increased strategic fit, significantly enhances firm performance. Implications for research on strategic and innovation leadership and adaptive organizational systems are discussed. 相似文献
53.
This paper discusses measurement issues related to the evaluation of computer-tailored health behavior change programs. As the first generation of commercially available tailored products is utilized in health promotion programming, programmers and researchers are becoming aware of the unique challenges that the evaluation of these programs presents. A project is presented that used an online tailored health behavior assessment (HBA) in a worksite setting. Process and outcome evaluation methods are described and include the challenges faced, and strategies proposed and implemented, for meeting them. Implications for future research in tailored program development, implementation, and evaluation are also discussed. 相似文献
54.
Multiple comparison procedures are extended to designs consisting of several groups, where the treatment means are to be compared within each group. This may arise in two-factor experiments, with a significant interaction term, when one is interested in comparing the levels of one factor at each level of the other factor. A general approach is presented for deriving the distributions and calculating critical points, following three papers which dealt with two specific procedures. These points are used for constructing simultaneous confidence intervals over some restricted set of contrasts among treatment means in each of the groups. Tables of critical values are provided for two procedures and an application is demonstrated. Some extensions are presented for the case of possible different sets of contrasts and also for unequal variances in the various groups. 相似文献
55.
Estimation of a characteristic based on surveys repeated at regular intervals is considered. A state space formulation is given for the problem and the Kalman Filter is used to obtain an estimate and its variance. Some examples are also given to illustrate the methodology. 相似文献
56.
57.
Abraham Neyman 《Econometrica : journal of the Econometric Society》1999,67(1):45-64
It is shown that an exponentially small departure from the common knowledge assumption on the number T of repetitions of the prisoners' dilemma already enables cooperation. More generally, with such a departure, any feasible individually rational outcome of any one-shot game can be approximated by a subgame perfect equilibrium of a finitely repeated version of that game. The sense in which the departure from common knowledge is small is as follows: (I) With probability one, the players know T with precision ±K. (ii) With probability 1 −ε, the players know T precisely; moreover, this knowledge is mutual of order εT. (iii) The deviation of T from its finite expectation is exponentially small. 相似文献
58.
Bryan Ellickson Birgit Grodal Suzanne Scotchmer William R. Zame 《Econometrica : journal of the Econometric Society》1999,67(5):1185-1217
This paper defines a general equilibrium model with exchange and club formation. Agents trade multiple private goods widely in the market, can belong to several clubs, and care about the characteristics of the other members of their clubs. The space of agents is a continuum, but clubs are finite. It is shown that (i) competitive equilibria exist, and (ii) the core coincides with the set of equilibrium states. The central subtlety is in modeling club memberships and expressing the notion that membership choices are consistent across the population. 相似文献
59.
In a survey exploring the reliability and validity of a screening tool, we explored the substance abuse and mental health issues among 371 elders; 74 were sexual minorities. Analyses by age group indicated that elders 55-64 years had significantly more problems with substance abuse, posttraumatic stress disorder (PTSD), depression, anxiety, and suicidal thoughts compared to those 65 and older. Bisexuals reported significantly greater problems with depression, anxiety, and suicidality than either heterosexual or lesbian or gay elders. Mental health and substance abuse treatment utilization was low among all elders with problems. Implications for assessment, access to care, and group-specific services delivery are discussed. 相似文献
60.
Abstract Four hundred fifty-six undergraduates at a Scottish university completed the Core Alcohol and Drug Survey, an instrument widely used in the United States to examine the nature, scope, and consequences of alcohol and other drug use on college campuses. The Scottish students were found to drink more frequently, consume more alcohol, and engage in binge drinking more often than their American counterparts. The Scottish students also demonstrated higher rates of hangovers, missed classes, and blackouts than the Americans, but the percentage of American students who had driven while intoxicated was greater than that of the Scots. Focus groups of students in Scotland and interviews with student affairs personnel and local officials indicated that student drinking is not generally viewed as a problem because extensive alcohol use appears to be part of Scottish culture and is readily accepted. Students reported that their drinking, other than in pubs, was spread out over time and was associated with eating and social activities. At student social events where alcohol was served, there was little evidence of loud, inappropriate, aggressive, or otherwise rowdy behavior; drinking appeared to be handled in a more controlled, safe, and responsible way than among US college students. 相似文献