Parameter estimation in latent trait models

Latent trait models for binary responses to a set of test items are considered from the point of view of estimating latent trait parameters=( ₁, , _n ) and item parameters=( ₁, , _k ), where _j may be vector valued. With considered a random sample from a prior distribution with parameter, the estimation of (, ) is studied under the theory of the EM algorithm. An example and computational details are presented for the Rasch model.This work was supported by Contract No. N00014-81-K-0265, Modification No. P00002, from Personnel and Training Research Programs, Psychological Sciences Division, Office of Naval Research. The authors wish to thank an anonymous reviewer for several valuable suggestions.     

试论康德心理学思想及其对当代的影响

康德著作中蕴含着丰富的心理学思想,其在继承沃尔夫理性心理学与经验心理学二分的基础上,通过批评理性心理学,消解了我思的主体地位,为解决二元论问题做出了重要努力;通过批评经验心理学,指明了心理学在成长为一门科学过程中必须面对的诸多问题。新康德主义在继承并改造康德思想的过程中,发展出一系列影响深远的心理学理论;认知心理学的重要代表人物皮亚杰基于对康德思想独具特色的把握,提出了发生认识论;而当代认知科学的图式理论,则完全是建基于对康德经验图式理论框架的全面继承上。     

经验基础与知识确证

Whether empirical givenness has the reliability that foundationalists expect is a point about which some philosophers are highly skeptical. Sellars took the doctrine of givenness as a “myth,” denying the existence of immediate perceptual experience. The arguments in contemporary Western epistemology are concentrated on whether sensory experience has conceptual contents, and whether there is any logical relationship between perceptions and beliefs. In fact, once the elements of words and conceptions in empirical perception are affirmed, the logical relationship between perceptual experience and empirical belief is also affirmed. This relationship takes place through perceptual experience acting as evidence for beliefs. The real problem lies in how one should distinguish between the different relationships with perception of singular beliefs and of universal beliefs, and in how singular beliefs can provide justification for universal beliefs. __________ Translated from Zhongguo Shehui Kexue 中国社会科学 (Social Sciences in China), 2007, (1): 65–75     

What Can Artificial Intelligence Learn from Wittgenstein＇s On Certainty？.

Meta-philosophically speaking, the philosophy of artificial intelligence （AI） is intended not only to explore the theoretical possibility of building ＂thinking machines,＂ but also to reveal philosophical implications of specific AI approaches. Wittgenstein＇s comments on the analytic/empirical dichotomy may offer inspirations for AI in the second sense. According to his ＂river metaphor＂ in On Certainty, the analytic/empirical boundary should be delimited in a way sensitive to specific contexts of practical reasoning. His proposal seems to suggest that any cognitive modeling project needs to render the system context-sensitive by avoiding representing large amounts of truisms in its cognitive processes, otherwise neither representational compactness nor computational efficiency can be achieved. In this article, different AI approaches （like the Common Sense Law of Inertia approach, the Bayesian approach and the connectionist approach） will be critically evaluated under the afore-mentioned Wittgensteinian criteria, followed by the author＇s own constructive suggestion on what AI needs to try to do in the near future.     

Extensions of Rasch's multiplicative poisson model

Consideration will be given to a model developed by Rasch that assumes scores observed on some types of attainment tests can be regarded as realizations of a Poisson process. The parameter of the Poisson distribution is assumed to be a product of two other parameters, one pertaining to the ability of the subject and a second pertaining to the difficulty of the test. Rasch's model is expanded by assuming a prior distribution, with fixed but unknown parameters, for the subject parameters. The test parameters are considered fixed. Secondly, it will be shown how additional between- and within-subjects factors can be incorporated. Methods for testing the fit and estimating the parameters of the model will be discussed, and illustrated by empirical examples.     

Reviewing the research in children’s spirituality (2005–2015): proposing a pluricultural approach

Research on children’s spirituality seems to continue to be scarcely represented in the field of early childhood. In reviewing the literature, looking at empirical data-driven studies, this paper compiles an international review of the work completed in the last 10 years (2005–2015) on the topic of children’s spirituality. The research-based works reviewed are analysed and sorted taking into account: research methods, participant demographics (age, gender, ethnicity) and location (urban vs. suburban/rural, school vs. home), yet are presented in categories found related to their topic of study: (1) spiritual meaning-making and relationships to/with God, (2) children’s spirituality in education and (3) identity formation and sense of self. Finally, identification of gaps in the research literature regarding the study of children’s spirituality is presented. As well, avenues for future research are proposed, identifying methods and approaches. Also, the term pluricultural as a means to guide researchers in making sense of the complex phenomenon that is children’s spirituality is introduced.     

What kind of discipline is psychoanalysis?

Current controversies involving clinical, conceptual and empirical research shed light on how psychoanalysis confronts its nature and its future. Some relevant debates in which Wallerstein, Green, Hoffman, Eagle and Wolitzky, Safran, Stern, Blass and Carmeli, and Panksepp have participated are examined regarding the characteristics of their argumentation. Agreements and disagreements are explored to find ways that could have allowed the discussion to progress. Two foci are highlighted in these debates: (a) whether a clinical common ground exists in psychoanalysis and what kind of procedure could contribute to further clarification; (b) complementation of in‐clinical and extra‐clinical evidence. Both aspects are scrutinized: the possibility of complementing diverse methodologies, and the nature of the shared clinical evidence examined in clinical discussion groups such as those promoted by the IPA Clinical Observation Committee. The importance of triangulation and consilience is brought to bear regarding their contribution to the robustness of psychoanalysis. So as to strengthen a critical perspective that enhances the discipline's argumentative field, psychoanalysis should take into account arguments from different sources according to their specific merits. By doing this, psychoanalysis increases its relevance within the current interdisciplinary dialogue.