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881.
M. E. Bock P. Diaconis F. W. Huffer M. D. Perlman 《Revue canadienne de statistique》1987,15(4):387-395
We study the behavior of the tail probabilities of weighted averages of certain independently and identically distributed random variables as the weights are varied. We show that the upper and lower tails are smallest when all the weights are equal. Our results apply to exponential, chi-squared, gamma, and Weibull random variables. 相似文献
882.
This article provides an introduction to the use of Confirmatory Factor Analysis to test measurement invariance and stability in longitudinal research. The approach is illustrated through examples representing: (a) one construct, two measurement waves; (b) one construct, three waves; (c) two constructs, two waves; and (d) comparison of treatment and control groups in pre-post designs. Basic issues in establishing measurement invariance over time, across treatment groups, and within measurement waves are discussed. Estimates of the stability coefficients that are corrected for measurement error and method variance associated with each specific measured variable are provided. Establishing measurement invariance is a critical requirement for making inferences about treatment effects and changes in constructs over time. 相似文献
883.
884.
We use major league baseball data to examine risk and final-offer arbitration usage. Risk attitudes are proxied by the likelihood
that FOA-generated salary increases place the player’s baseball employment at risk. Employment risk is inversely related to
player quality. Our evidence suggests that higher-quality (low-risk) players are more likely to file for arbitration and seek
an arbitrated settlement than lowerquality (high-risk) players.
We thank Paul Burgess for helpful comments on an earlier version of this paper. 相似文献
885.
886.
Stephen J. Kobrin 《Journal of Policy Modeling》1981,3(2):251-270
Political risk is defined in terms of managerial contingencies arising from political events and processes. A number of “first-generation” assessment methodologies are reviewed and compared in terms of their degree of structure (explicit model of process) and systemization (formalization of methodology). The paper concludes that, at this point, effective political assessment is more likely to result from explicit specification of causal relationships and implementation of systematic analytical procedures than from development of increased methodological sophistication or elegance. 相似文献
887.
Paul F. Dell 《Journal of marital and family therapy》1984,10(4):351-356
The thesis of “Beyond Homeostasis” is (a) that the discourse of family therapists unquestionably shows that family therapists have tended to see homeostasis as a trait of families; and (b) that such a view of homeostasis is inconsistent with the systemic paradigm. Therefore, family therapy should go beyond such an understanding of homeostasis. Ariel et al. may have failed to grasp this argument; they have certainly chosen to ignore it. Ariel et al. have provided a logical empiricist explication of the nonsystemic version of homeostasis which is portrayed in the discourse of family therapists. I still argue that family therapy should go beyond such an understanding of homeostasis. 相似文献
888.
For a moderate or large number of regression coefficients, shrinkage estimates towards an overall mean are obtained by Bayes and empirical Bayes methods. For a special case, the Bayes and empirical Bayes shrinking weights are shown to be asymptotically equivalent as the amount of shrinkage goes to zero. Based on comparisons between Bayes and empirical Bayes solutions, a modification of the empirical Bayes shrinking weights designed to guard against unreasonable overshrinking is suggested. A numerical example is given. 相似文献
889.
Robert F. Stahmann 《Journal of marital and family therapy》1977,3(3):91-94
Luthman, S. G., & Kirschenbaum, M. The Dynamic Family .
Stapleton, J., & Bright, R. Equal Marriage . 相似文献
Stapleton, J., & Bright, R. Equal Marriage . 相似文献
890.