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51.
Inspired by Barsalou’s (Journal of Experimental Psychology: Learning, Memory, and Cognition, 11, 629–654, 1985) proposal that categories can be represented by ideals, we develop and test a computational model, the ideal dimension model
(IDM). The IDM is tested in its account of the typicality gradient for 11 superordinate natural language concepts and, using
Bayesian model evaluation, contrasted with a standard exemplar model and a central prototype model. The IDM is found to capture
typicality better than do the exemplar model and the central tendency prototype model, in terms of both goodness of fit and
generalizability. The present findings challenge the dominant view that exemplar representations are most successful and present
compelling evidence that superordinate natural language categories can be represented using an abstract summary, in the form
of ideal representations. Supplemental appendices for this article can be downloaded from . 相似文献
52.
We examined measurement invariance and age-related robustness of a short 15-item Big Five Inventory (BFI-S) of personality dimensions, which is well suited for applications in large-scale multidisciplinary surveys. The BFI-S was assessed in three different interviewing conditions: computer-assisted or paper-assisted face-to-face interviewing, computer-assisted telephone interviewing, and a self-administered questionnaire. Randomized probability samples from a large-scale German panel survey and a related probability telephone study were used in order to test method effects on self-report measures of personality characteristics across early, middle, and late adulthood. Exploratory structural equation modeling was used in order to test for measurement invariance of the five-factor model of personality trait domains across different assessment methods. For the short inventory, findings suggest strong robustness of self-report measures of personality dimensions among young and middle-aged adults. In old age, telephone interviewing was associated with greater distortions in reliable personality assessment. It is concluded that the greater mental workload of telephone interviewing limits the reliability of self-report personality assessment. Face-to-face surveys and self-administrated questionnaire completion are clearly better suited than phone surveys when personality traits in age-heterogeneous samples are assessed. 相似文献
53.
Mathematical models of cognition often contain unknown parameters whose values are estimated from the data. A question that
generally receives little attention is how informative such estimates are. In a maximum likelihood framework, standard errors
provide a measure of informativeness. Here, a standard error is interpreted as the standard deviation of the distribution
of parameter estimates over multiple samples. A drawback to this interpretation is that the assumptions that are required
for the maximum likelihood framework are very difficult to test and are not always met. However, at least in the cognitive
science community, it appears to be not well known that standard error calculation also yields interpretable intervals outside
the typical maximum likelihood framework. We describe and motivate this procedure and, in combination with graphical methods,
apply it to two recent models of categorization: ALCOVE (Kruschke, 1992) and the exemplar-based random walk model (Nosofsky
& Palmeri, 1997). The applications reveal aspects of these models that were not hitherto known and bring a mix of bad and
good news concerning estimation of these models. 相似文献
54.
In this article, we derive a nonparametric prediction from decision-bound theory (DBT). The crucial aspect that is tested is whether or not familiarity of a stimulus affects response time in categorization. We show that, for our design, DBT, extended with some reasonable and testable assumptions, predicts no familiarity effect. Our prediction is nonparametric in that, rather than fit a specific instantiation of general DBT, we posit only some general assumptions of this theory and derive the prediction from these assumptions. It is found that familiarity did have a strong impact on response time for at least half of our participants. We suggest that DBT is in itself incomplete and should be extended to account for the full range of available data. 相似文献
55.
Gert J.J. Biesta 《Studies in Philosophy and Education》1999,18(4):203-220
This article addresses the question how educational theory can overcome the assumptions of the tradition of the philosophy of consciousness, a tradition which can be seen as the foundation of the modern project of education. While twentieth century philosophy has seen several attempts to make a shift from consciousness to intersubjectivity (Dewey, Wittgenstein, Habermas) it is argued that this shift still remains within the humanistic tradition of modern thought in that it still tries to define, still tries to develop a theory about the human subject. Foucault's thesis of the end of man is interpreted as an attempt to move beyond humanism, an attempt motivated by a sincere concern for the humanity of the subject. Starting from the question as to who comes after the subject, several answers to this question, which all share an interest in the question as to where the subject comes into presence, are discussed (referring to the writings of Tschumi, Arendt and Levinas). In the concluding section it is argued that one way to move beyond the humanistic tradition of modern thought is to conceive of the subject in terms of responsibility and ethics (Levinas) and to conceive of the very task of theory in terms of justice, and not in terms of truth. This, so it is argued, should be the final concern for educational theory and curriculum theory. 相似文献
56.
57.
Active social communication is an effective way for infants to learn about the world. Do pre‐verbal and pre‐pointing infants seek epistemic information from their social partners when motivated to obtain information they cannot discover independently? The present study investigated whether 12‐month‐olds (N = 30) selectively seek information from knowledgeable adults in situations of referential uncertainty. In a live experiment, infants were introduced to two unfamiliar adults, an Informant (reliably labeling objects) and a Non‐Informant (equally socially engaging, but ignorant about object labels). At test, infants were asked to make an impossible choice—locate a novel referent among two novel objects. When facing epistemic uncertainty—but not at other phases of the procedure—infants selectively referred to the Informant rather than the Non‐Informant. These results show that pre‐verbal infants use social referencing to actively and selectively seek information from social partners as part of their interrogative communicative toolkit. A video abstract of this article can be viewed at https://youtu.be/23dLPsa-fAY 相似文献
58.
59.
In this study we examined the factor structure of the Child Behavior Checklist (CBCL) filled out by group care workers. Group care workers' judgements were collected on 846 children and adolescents treated in various residential settings in The Netherlands. Using confirmatory factor analysis, we were able to show that the original CBCL factor model based on parental judgments of child behavior also fits for the judgments of group care workers. This means that the well known 8 narrow-band syndromes (Withdrawn, Somatic Complaints, etc.) as well as the 2 broad-band syndromes (Internalizing and Externalizing) can be used to interpret the CBCL scores of group care workers. This confirmation of the CBCL factor structure is a first step to add a group care worker version to the CBCL family. However, as a second step, normative data need to be gathered to further enhance the use of the CBCL for group care workers. 相似文献
60.
Katleen Vandist Gert Storms Eva Van den Bussche 《Attention, perception & psychophysics》2001,81(1):137-157
In the human category of learning, learning is studied in a supervised, an unsupervised, or a semisupervised way. The rare human semisupervised category of learning studies all focus on early learning. However, the impact of the semisupervised category learning late in learning, when automaticity develops, is unknown. Therefore, in Experiment 1, all participants were first trained on the information-integration category structure for 2 days until they reached an expert level. Afterwards, half of the participants learned in a supervised way and the other half in a semisupervised way over two successive days. Both groups received an equal number of feedback trials. Finally, all participants took part in a test day where they were asked to respond as quickly as possible. Participants were significantly faster on this test in the semisupervised group than in the supervised group. This difference was not found on day 2, implying that the no-feedback trials in the semisupervised condition facilitated automaticity. Experiment 2 was designed to test whether the higher number of trials in the semisupervised condition of Experiment 1 caused the faster response times. We therefore created an almost supervised condition where participants almost always received feedback (95%) and an almost unsupervised condition where participants almost never received feedback (5%). All conditions now contained an equal number of trials to the semisupervised condition of Experiment 1. The results show that receiving feedback almost always or almost never led to slower response times than the semisupervised condition of Experiment 1. This confirms the advantage of semisupervised learning late in learning. 相似文献