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91.
AbstractDominance analysis is a procedure for measuring the importance of predictors in multiple regression analysis. We show that dominance analysis can be enhanced using a dynamic programing approach for the rank-ordering of predictors. Using customer satisfaction data from a call center operation, we demonstrate how the integration of dominance analysis with dynamic programing can provide a better understanding of predictor importance. As a cautionary note, we recommend careful reflection on the relationship between predictor importance and variable subset selection. We observed that slight changes in the selected predictor subset can have an impact on the importance rankings produced by a dominance analysis. 相似文献
92.
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94.
Dennis A. Hill 《Serials Review》2013,39(1):35-37
AbstractSerials and the serials information chain have changed rapidly since the development of the electronic journal. Many recent developments are briefly described, including electronic resource management systems (ERMS) and functional requirements for bibliographic records (FRBR). The constantly changing nature of serials is compared to a psychological midlife crisis. 相似文献
95.
Steinberg Richard Young Dennis R. 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》1998,9(3):249-260
In this paper we examine Salamon and Anheier's characterization and testing of alternative theories of the size and scope of the nonprofit sector in different countries. We identify various nuances and refinements of these theories, and we suggest ways in which their validation through statistical testing can be extended and improved. Finally, we offer additional avenues of research that could productively exploit the important cross-national data set assembled by the Johns Hopkins Project. 相似文献
96.
Theory and Society - 相似文献
97.
Dennis L. Poole Miguel Ferguson Diana DiNitto A. James Schwab 《Nonprofit management & leadership》2002,12(3):261-276
Community‐based organizations (CBOs) are now cast among the lead actors in welfare reform. But do they have adequate capacity to perform this critical leadership function? Early findings from fifteen state‐funded projects in Texas show that state planners must carefully assess the capacity of a CBO to initiate and sustain an innovation at the local level. The authors examine six organizational variables that predict success or failure: goals, management, technology, funding, community involvement, and performance. 相似文献
98.
A special class of supersaturated design, called marginally over saturated design (MOSD), in which the number of variables under investigation (k) is only slightly larger than the number of experimental runs (n), is presented. Several optimality criteria for supersaturated designs are discussed. It is shown that the resolution rank criterion is most appropriate for screening situations. The construction method builds on two major theorems which provide an efficient way to evaluate resolution rank. Examples are given for the cases n=8, 12, 16, and 20. Potential extensions for future work are discussed. 相似文献
99.
This paper presents three small sample tests for testing the heteroscedasticity among regression disturbances. The power of these tests are compared with two of the leading tests for this hypothesis, one by Goldfeld and Quandt [5] and the other by Theil [17]. We also provide a heuristic method of selecting the number of middle observations to be deleted for the Goldfeld-Quandt type of tests. 相似文献
100.
In this paper we consider the problem of obtaining best linear unbiased estimators of individual response coefficients in a Random Coefficient Linear Regression (RCR} Model, comparing alternative estimators for these response vectors through a simulation study. We also provide an empirical example that illustrates the estimation procedure proposed here. 相似文献