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In a recent article, Ross, Clayer and Campbell (1983) argued and showed by means of factor analysis that the number of child-rearing dimensions found previously with the EMBU appears to be dependent on the type of rotation used in factoring. Based on the assumption and empirical evidence that the dimensions found earlier are significantly correlated, Ross et al. (1983) argued that Oblique rotation would appear to give rise to a larger number of distinguishable dimensions than previous analyses (e.g. Arrindell, Emmelkamp, Brilman and Monsma, 1983). We contend that their conclusion was based on an inappropriate analysis of the data with a neglect of relevant psychometric principles. Employing objective techniques of factorial invariance the factors obtained in our previous study were shown here to be congruent across rotational procedures (Oblique vs Varimax). Supporting the stability and factorial and construct validity of the EMBU Rejection, Emotional Warmth, Overprotection and Favouring Subject dimensions, they were shown in further analyses to be: (a) replicable across split samples of phobics (Ns: 421 vs 420); and (b) invariant across distinct populations (phobics, N = 841 vs normals, N = 277). 相似文献
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Willem Doise Gabriel Mugny Anne-Nelly Perret-Clermont 《European journal of social psychology》1975,5(3):367-383
This paper presents two experiments to support the general hypothesis that the coordination of actions between individuals promotes the acquisition of cognitive coordinations. The first experiment shows that two children, working together, can successfully perform a task involving spatial coordinations; children of the same age, working alone, are not capable of performing the task. The second experiment shows that subjects who did not possess certain cognitive operations involved in Piaget's conservation of liquids task acquire these operations after having actualized them in a social coordination task. 相似文献
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Two kinds of measures of multivariate association, based on Wilks' and the Bartlett-Nanda-Pillai trace criterionV, respectively, are compared in terms of properties of the univariateR
2 which they generalize. A unified set of derivations of the properties is provided which are self-contained and not restricted to decompositions in canonical variates. One conclusion is that asymmetric index based on allows generalization of the multiplicative decomposition ofR
2 in terms of squared partial correlations, but not the additive decomposition in terms of squared semipartial correlations, while the reverse is true for anasymmetric index based onV.We are indebted to Jos M. F. ten Berge for some fruitful discussions. 相似文献
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A procedure for computing the power of the likelihood ratio test used in the context of covariance structure analysis is derived. The procedure uses statistics associated with the standard output of the computer programs commonly used and assumes that a specific alternative value of the parameter vector is specified. Using the noncentral Chi-square distribution, the power of the test is approximated by the asymptotic one for a sequence of local alternatives. The procedure is illustrated by an example. A Monte Carlo experiment also shows how good the approximation is for a specific case.This research was made possible by a grant from the Dutch Organization for Advancement of Pure Research (ZWO). The authors also like to acknowledge the helpful comments and suggestions from the editor and anonymous reviewers. 相似文献
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Radley JJ Kabbaj M Jacobson L Heydendael W Yehuda R Herman JP 《Stress (Amsterdam, Netherlands)》2011,14(5):481-497
This paper highlights a symposium on stress risk factors and stress susceptibility, presented at the Neurobiology of Stress workshop in Boulder, CO, in June 2010. This symposium addressed factors linking stress plasticity and reactivity to stress pathology in animal models and in humans. Dr. J. Radley discussed studies demonstrating prefrontal cortical neuroplasticity and prefrontal control of hypothalamo-pituitary-adrenocortical axis function in rats, highlighting the emerging evidence of the critical role that this region plays in normal and pathological stress integration. Dr. M. Kabbaj summarized his studies of possible epigenetic mechanisms underlying behavioral differences in rat populations bred for differential stress reactivity. Dr. L. Jacobson described studies using a mouse model to explore the diverse actions of antidepressants in brain, suggesting mechanisms whereby antidepressants may be differentially effective in treating specific depression endophenotypes. Dr. R. Yehuda discussed the role of glucocorticoids in post-traumatic stress disorder (PTSD), indicating that low cortisol level may be a trait that predisposes the individual to development of the disorder. Furthermore, she presented evidence indicating that traumatic events can have transgenerational impact on cortisol reactivity and development of PTSD symptoms. Together, the symposium highlighted emerging themes regarding the role of brain reorganization, individual differences, and epigenetics in determining stress plasticity and pathology. 相似文献
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