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631.
Marco J. Nathan 《No?s (Detroit, Mich.)》2015,49(2):253-274
This essay presents a model‐theoretic account of dispositional properties, according to which dispositions are not ordinary properties of real entities; dispositions capture the behavior of abstract, idealized models. This account has several payoffs. First, it saves the simple conditional analysis of dispositions. Second, it preserves the general connection between dispositions and regularities, despite the fact that some dispositions are not grounded in actual regularities. Finally, it brings together the analysis and the explanation of dispositions under a unified framework. 相似文献
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We investigate the moderating effects of self-regulatory foci (Higgins, 1996a) on the impact of anticipated emotions in decision making. We hypothesise that regulatory focus moderates the relationships between anticipated emotions of success and failure of performing an act and evaluations of the act. A promotion focus should highlight the role of dissatisfaction-satisfaction emotions in predicting evaluations, whereas a prevention focus should emphasise the impact of relaxation-agitation emotions. Hypotheses were investigated in two studies. In the first, chronic self-regulatory orientations were assessed; in the second, self-regulatory concerns were manipulated. Results support the moderating effects of regulatory foci on the impact of negative anticipated emotions: Anticipated agitation induces more favourable action evaluations under a prevention focus; and anticipated dejection leads to more favourable action evaluations under a promotion focus. No interaction was detected involving positive emotions, suggesting that an asymmetry may exist in motivational regulation of emotional information. 相似文献
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AbstractDrop out is a typical issue in longitudinal studies. When the missingness is non-ignorable, inference based on the observed data only may be biased. This paper is motivated by the Leiden 85+ study, a longitudinal study conducted to analyze the dynamics of cognitive functioning in the elderly. We account for dependence between longitudinal responses from the same subject using time-varying random effects associated with a heterogeneous hidden Markov chain. As several participants in the study drop out prematurely, we introduce a further random effect model to describe the missing data mechanism. The potential dependence between the random effects in the two equations (and, therefore, between the two processes) is introduced through a joint distribution specified via a latent structure approach. The application of the proposal to data from the Leiden 85+ study shows its effectiveness in modeling heterogeneous longitudinal patterns, possibly influenced by the missing data process. Results from a sensitivity analysis show the robustness of the estimates with respect to misspecification of the missing data mechanism. A simulation study provides evidence for the reliability of the inferential conclusions drawn from the analysis of the Leiden 85+ data. 相似文献
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