Using psychometric analysis to evaluate the construct validity and reliability of the Coping Response Indices

The Coping Response Indices developed by Billings and Moos (1984a) are frequently used in stress research in the social science and clinical fields. These indices were originally developed in a clinical setting using a conceptual process rather than psychometric methods. This study investigates the factorial structure of the Coping Response Indices scale using a nonclinical sample. Principal components analysis with varimax rotation yields three distinct dimensions within the scale. Considerable support is found for the conceptualization of the Coping Response Indices, as proposed by Billings and Moos. There is also some indication, however, that the conceptualization and measurement of the indices need further revision and testing, especially if they are to be used in social science research. Her research interests include economic strain, stress and coping, and child functioning in diverse family structures. She received her Ph.D. from Oregon State University. Her research focuses on vulnerable children and families, life-span caregiving issues, intergenerational relations, and prevention of child abuse and neglect. She received her Ph.D. from Oregon State University. Her research focuses on family resource management, work, stress, and families, and multiple role management. She received her Ed.D. from Utah State University.     

德国关于电子电气设备的闭环供应链研究:一种生态效益计算方法

近来关于闭环供应链网络的文献中提出了两个重要问题:(1)如何制定平衡环境和经济效益的优化方案;(2)如何深刻理解二者间的效益背反关系。本文认为,针对环境和经济间的效益边界及其背反关系进行全面探索,可以有效解决环境保护和经济发展中的效益平衡问题。为了解决求解效益边界的多变量问题,本文设计了一个针对目标函数中的数值进行指数计算的生态效益算法,并在德国电子电气设备闭环供应链设计中进行了实证研究。     

Ryff’s Six-factor Model of Psychological Well-being, A Spanish Exploration

This article aims to provide researchers interested in using Ryff’s Scales of Psychological Wellbeing with additional information to make an informed decision on the scales and items to use. It builds on the discussion in the literature on the six factor structure of this measure. An alternative shortened version of this wellbeing measure (Van Dierendonck 2004). Personality and Individual Differences, 36, 629–643) was analyzed in a combined Spanish language sample from Spain and Columbia. Using confirmatory factor analysis, one-, two-, three- and six-factor models were compared. The results showed that indeed four out the six dimensions overlapped considerably. Nevertheless, the model that fit the data best was the six factor model with one underlying second order well-being factor, hereby confirming Ryff’s model in a non-Anglo–Saxon culture.     

The limits of epistemic democracy

The so-called doctrinal paradox reveals that a jury that decides by majority on the truth of a set of propositions, may come to a conclusion that is at odds with a legal doctrine to which they all subscribe. The doctrinal paradox, and its subsequent generalization by List and Pettit (Econ Philos 18:89–110, 2002), reveal the logical difficulties of epistemic democracy. This paper presents several generalizations of the paradox that are formulated with the use of many-valued logic. The results show that allowing the individual or the collective judgements to be formulated in terms of degrees of beliefs does not ensure the possibility of collective epistemic decision making.     

Optimal control of large nonlinear models: An efficient method of policy search applied to the Dutch economy

A modification of optimal control for an economy under uncertainty, by splitting the technique into a simulation phase and a control phase, makes policy optimization feasible for large-scale nonlinear models. The advantages of this approach in a policy search are clearly illustrated by an application to Dutch economic planning. A historical analysis shows that it is important to treat unemployment and the balance of payments as the key targets. That dual target strategy, worked out for the current planning period, leads to economic expansion and employment creation rather than retreachment.