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131.
Sofie M. M. Loyens Remy M. J. P. Rikers Henk G. Schmidt 《The British journal of educational psychology》2009,79(3):501-514
Background Constructivist views of learning have brought conceptions of learning to attention again. Conceptions are considered important determinants of effective learning. Students can differ in their conceptions depending on their educational experience. Aims The present study investigated students' conceptions of constructivist learning. Do students with greater experience in their academic programme differ in their conceptions of constructivist learning compared to students with less experience/ In addition, to what extent are conceptions of constructivist learning different in a conventional, lecture‐based curriculum compared to a constructivist, problem‐based learning curriculum/ Samples Three groups (i.e. first‐year, second‐year, and third‐year students) in two different curricula (i.e. conventional, lecture‐based and constructivist, problem‐based) were tested. Methods A cross‐sectional design was used. Students' conceptions of constructivist activities (i.e. knowledge construction, cooperative learning, self‐regulation, use of authentic problems, self‐perceived inability to learn, and motivation to learn) were measured by a questionnaire. Data were analyzed using a two‐way multivariate analysis of variance (MANOVA). Results A significant difference in questionnaire's scores between year 1 and year 2 (but not between year 2 and 3) was found with respect to conceptions about knowledge construction, self‐regulation, and the use of authentic problems, but not for cooperative learning and motivation to learn. For self‐perceived inability, an interaction effect was found. Furthermore, results showed significant differences between both curriculum groups on all dependent measures. Conclusions Differences in conceptions can be perceived between students who enter a new learning programme (i.e. higher education) and students who already have one year of experience in higher education. Among students with more than one year of educational experience, differences disappear. Furthermore, this study shows that the learning environment can make a difference with respect to students' conceptions of constructivist learning activities. 相似文献
132.
Eva Ceulemans Henk A. L. Kiers 《The British journal of mathematical and statistical psychology》2009,62(3):601-620
Recently, a number of model selection heuristics (i.e. DIFFIT, CORCONDIA, the numerical convex hull based heuristic) have been proposed for choosing among Parafac and/or Tucker3 solutions of different complexity for a given three‐way three‐mode data set. Such heuristics are often validated by means of extensive simulation studies. However, these simulation studies are unrealistic in that it is assumed that the variance in real three‐way data can be split into two parts: structural variance, due to a true underlying Parafac or Tucker3 model of low complexity, and random noise. In this paper, we start from the much more reasonable assumption that the variance in any real three‐way data set is due to three different sources: (1) a strong Parafac or Tucker3 structure of low complexity, accounting for a considerable amount of variance, (2) a weak Tucker3 structure, capturing less prominent data aspects, and (3) random noise. As such, Parafac and Tucker3 simulation studies are run in which the data are generated by adding a weak Tucker3 structure to a strong Parafac or Tucker3 one and perturbing the resulting data with random noise. The design of these studies is based on the reanalysis of real data sets. In these studies, the performance of the numerical convex hull based model selection method is evaluated with respect to its capability of discriminating strong from weak underlying structures. The results show that in about two‐thirds of the simulated cases, the hull heuristic yields a model of the same complexity as the strong underlying structure and thus succeeds in disentangling strong and weak underlying structures. In the vast majority of the remaining third, this heuristic selects a solution that combines the strong structure and (part of) the weak structure. 相似文献
133.
The effect of task demands on the detection of semantic illusions was investigated. In Exp. 1, subjects were given a detection task with different instructions for accuracy. Less illusions occurred under instructions that stressed accuracy, indicating strategic control of detection rates. In Exp. 2, sentences with dissimilar distorted terms resulted in shorter latencies than sentences with similar distorted terms in a detection task, but in longer response times in a question-answering task. In Exp. 3, the similarity effect was found to vary with the position of the distorted term in combination with task demands. In a verification task, the similarity effect did not differ for the beginning or the end of sentences. In a question-answering task, a significant similarity effect was observed only for distorted terms at the beginning of sentences. We argue that the results indicate minimal depth of semantic processing with respect to different task requirements. Implications for different theoretical accounts of semantic illusions are discussed. 相似文献
134.
Naomi Ellemers Bertjan Doosje Ad Van Knippenberg Henk Wilke 《European journal of social psychology》1992,22(2):123-140
The present study investigated the conditions under which group members try to obtain membership in another group, or are motivated to protect their group membership when they risk losing it. One hundred and twenty-nine high school students participated as subjects in a laboratory experiment. Subjects were divided into two groups, allegedly on the basis of their problem solving style. The relative size (minority/majority) and status position (high/low) of the subject's group, as well as the permeability of group boundaries (permeable/impermeable) were manipulated as independent variables in a 2×2×2 factorial design. The main dependent variables were the extent to which individuals valued their group membership, and identified with their group. The main results are that membership in a group with high status is considered more attractive than membership in a low status group, This differential evaluation of high and low status groups is more extreme in minority groups than in groups of majority size. Furthermore, when group boundaries are permeable, members of high status minorities show relatively strong ingroup identification, indicating a strengthening of ties with their own group when an alternative (majority) group affiliation is possible. However, our expectation that permeable group boundaries would result in diminished ingroup identification in low status minorities was not confirmed. Some additional data suggest that unsatisfactory membership in a low status group is resolved in a different way. 相似文献
135.
Boltzmann’s Bildtheorie, which asserts that scientific theories are ‘mental pictures’ having at best a partial similarity
to reality, was a core element of his philosophy of science. The aim of this article is to draw attention to a neglected aspect
of it, namely its significance for the issue of scientific explanation and understanding, regarded by Boltzmann as central
goals of science. I argue that, in addition to being an epistemological view of the interpretation of scientific theories
Boltzmann’s Bildtheorie has implications for the nature of scientific understanding. This aspect has as yet been ignored because
discussion of the Bildtheorie has been restricted to the realism-instrumentalism debate. To elucidate my analysis of Boltzmann’s
Bildtheorie concrete examples are presented, and the pragmatist and Darwinist roots of Boltzmann’s view are discussed.
Moreover, I propose to use Boltzmann’s ideas as a starting-point for developing a novel analysis of the notion of scientific
understanding, of which a brief impression is given. It shows that the study of Boltzmann’s philosophy is not only of historical
interest but can be relevant also to modern philosophy of science and to the methodology of theoretical physics.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
136.
This paper explores usage of the concept ofabnormality in medical genetics and proposesdirectives for more careful usage of this concept.The conceptual difficulties are first explored, thena model is developed to assess actual usage, followedby analysis of a sample of genetic textbooks andgenetics literature. It appears that fact andvaluation are often intermingled, that referencestandards used to define 'genetic abnormalities' areoften not clear and that the concept of abnormality isoften used independent of the degree of certainty withwhich the altered genetype develops into a (seriously)harmful phenotype. On the basis of these findings itis argued that more restraint and more careful use ofthe concept of genetic abnormality of medical geneticsis appropriate as well as more agreement on the use ofreference standards. 相似文献
137.
Explaining Proenvironmental Intention and Behavior by Personal Norms and the Theory of Planned Behavior1 总被引:1,自引:0,他引:1
Paul Harland Henk Staats Henk A. M. Wilke 《Journal of applied social psychology》1999,29(12):2505-2528
The value of personal norms (Schwartz, 1977) for proenvironmental behavior has been demonstrated in previous studies (e.g., Vining & Ebreo, 1992), but not in addition to the theory of planned behavior (Ajzen & Madden, 1986). In the present study, this combination was investigated by means of a mail survey among a sample of 305 Dutch citizens who were enlisted to participate in a behavioral change intervention program on environmentally relevant behavior. Personal norms appear to increase the proportion of explained variance in 5 intentions and 4 self-reported measures of performed environmentally relevant behaviors beyond that explained by three of the theory of planned behavior constructs (i.e., attitude, subjective norm, and perceived behavioral control). Issues evoked by these results are discussed. 相似文献
138.
Hierarchical relations among three-way methods 总被引:1,自引:0,他引:1
Henk A. L. Kiers 《Psychometrika》1991,56(3):449-470
139.
In this study expectancy and equity theory were compared. An experiment was carried out on the effect of overpayment. Overpayment was manipulated by varying perceived input (perceived qualifications) and received outcome (financial compensation). The experiment consisted of a 2 × 3 design: two levels of payment (4 guilders p.h. and 8 guilders p.h.) and three levels of perceived qualifications (high, medium, low). Sixty-six subjects were hired through the students placement service to decode personality questionnaires. Overpayment by manipulation of monetary rewards did not lead to greater production, as was hypothesized by Adams' equity theory (1965). As far m overpayment has been manipulated by perceived qualifications for the job the data confirmed equity theory. Several other theories (e.g. expectancy theory: Lawler, 1968b) can explain both results. 相似文献
140.