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211.
Herbert W. Marsh Oliver Lüdtke Alexander Robitzsch Ulrich Trautwein Tihomir Asparouhov Bengt Muthén 《Multivariate behavioral research》2013,48(6):764-802
This article is a methodological-substantive synergy. Methodologically, we demonstrate latent-variable contextual models that integrate structural equation models (with multiple indicators) and multilevel models. These models simultaneously control for and unconfound measurement error due to sampling of items at the individual (L1) and group (L2) levels and sampling error due the sampling of persons in the aggregation of L1 characteristics to form L2 constructs. We consider a set of models that are latent or manifest in relation to sampling items (measurement error) and sampling of persons (sampling error) and discuss when different models might be most useful. We demonstrate the flexibility of these 4 core models by extending them to include random slopes, latent (single-level or cross-level) interactions, and latent quadratic effects. Substantively we use these models to test the big-fish-little-pond effect (BFLPE), showing that individual student levels of academic self-concept (L1-ASC) are positively associated with individual level achievement (L1-ACH) and negatively associated with school-average achievement (L2-ACH)—a finding with important policy implications for the way schools are structured. Extending tests of the BFLPE in new directions, we show that the nonlinear effects of the L1-ACH (a latent quadratic effect) and the interaction between gender and L1-ACH (an L1 × L1 latent interaction) are not significant. Although random-slope models show no significant school-to-school variation in relations between L1-ACH and L1-ASC, the negative effects of L2-ACH (the BFLPE) do vary somewhat with individual L1-ACH. We conclude with implications for diverse applications of the set of latent contextual models, including recommendations about their implementation, effect size estimates (and confidence intervals) appropriate to multilevel models, and directions for further research in contextual effect analysis. 相似文献
212.
Ulrich Meyer 《Synthese》2013,190(4):693-707
To define new property terms, we combine already familiar predicates by means of certain logical operations. Given suitable constraints, these operations may presumably include truth-functional sentence connectives and quantification over objects. What is less clear is whether we can also use modal operators for this purpose. The aim of this paper is to clarify what is involved in this question, and to argue in favor of modal property definitions. 相似文献
213.
Standard text reading involves frequent eye movements that go against normal reading order. The function of these “regressions” is still largely unknown. The most obvious explanation is that regressions allow for the rereading of previously fixated words. Alternatively, physically returning the eyes to a word’s location could cue the reader’s memory for that word, effectively aiding the comprehension process via location priming (the “deictic pointer hypothesis”). In Experiment 1, regression frequency was reduced when readers knew that information was no longer available for rereading. In Experiment 2, readers listened to auditorily presented text while moving their eyes across visual placeholders on the screen. Here, rereading was impossible, but deictic pointers remained available, yet the readers did not make targeted regressions in this experiment. In Experiment 3, target words in normal sentences were changed after reading. Where the eyes later regressed to these words, participants generally remained unaware of the change, and their answers to comprehension questions indicated that the new meaning of the changed word was what determined their sentence representations. These results suggest that readers use regressions to reread words and not to cue their memory for previously read words. 相似文献
214.
Martin Brunner Katarzyna Marta Gogol Philipp Sonnleitner Ulrich Keller Stefan Krauss Franzis Preckel 《Intelligence》2013
A domain-specific hierarchical conceptualization of mathematics achievement can be represented by the standard psychometric model in which a single latent dimension accounts for observed individual differences in scores on the respective subdomains (e.g., quantity). Alternatively, a fully hierarchical conceptualization of achievement can be represented by a nested-factor model in which individual differences in subdomain-specific scores are explained by both general student achievement and specific mathematics achievement. The authors applied both models to study the gender similarity hypothesis, the greater male variability hypothesis, and the masking hypothesis, which predicts that gender differences in general student achievement mask gender differences in both the means and the variability of specific mathematics achievement. Representative data were obtained from 275,369 15-year-old students in 41 countries. The results supported these hypotheses in most countries, demonstrating that a fully hierarchical conceptualization of achievement in terms of the nested-factor model significantly contributes to a better understanding of gender differences in the mean level, variability, and shape of students' achievement profiles. 相似文献
215.
Prior research demonstrates that members of collectivistic cultures are less likely to reduce cognitive dissonance after making a choice, compared to members of individualistic cultures. This difference has been attributed to different conceptualizations of choice that derive from different self‐construals across cultures. In individualistic cultures, choice leads to stronger commitment to the chosen option compared to collectivistic cultures, because it implicates core aspects of the independent self, such as personal preferences. However, this cultural variation in postchoice dissonance has thus far been studied exclusively by comparing East Asians and North Americans. Building on the assumption that this difference is due to different construals of the self, we conducted an experiment with movie choices using the classic free‐choice paradigm to examine differences in dissonance reduction between Western and Eastern Europeans, two populations known to differ with respect to interdependence. The results show that Eastern Europeans are less likely than Western Europeans to reduce postchoice dissonance by spreading their alternatives. Our findings speak to the generalizability of the hypothesis that in cultures differing in independence or interdependence people also differ in the way they construe choice, as well as in the way the act of choosing affects their self‐concept. 相似文献
216.
Thomas C. Kübler Colleen Rothe Ulrich Schiefer Wolfgang Rosenstiel Enkelejda Kasneci 《Behavior research methods》2017,49(3):1048-1064
Our eye movements are driven by a continuous trade-off between the need for detailed examination of objects of interest and the necessity to keep an overview of our surrounding. In consequence, behavioral patterns that are characteristic for our actions and their planning are typically manifested in the way we move our eyes to interact with our environment. Identifying such patterns from individual eye movement measurements is however highly challenging. In this work, we tackle the challenge of quantifying the influence of experimental factors on eye movement sequences. We introduce an algorithm for extracting sequence-sensitive features from eye movements and for the classification of eye movements based on the frequencies of small subsequences. Our approach is evaluated against the state-of-the art on a novel and a very rich collection of eye movements data derived from four experimental settings, from static viewing tasks to highly dynamic outdoor settings. Our results show that the proposed method is able to classify eye movement sequences over a variety of experimental designs. The choice of parameters is discussed in detail with special focus on highlighting different aspects of general scanpath shape. Algorithms and evaluation data are available at: http://www.ti.uni-tuebingen.de/scanpathcomparison.html. 相似文献
217.
Laurenz L. Meier Ulrich Orth Jaap J.A. Denissen Anja Kühnel 《Journal of research in personality》2011,(6):604-612
We investigated age differences in instability, contingency, and level of self-esteem from age 13 to 72 years, using data from 1386 individuals who participated in a diary study over 25 days. Instability and contingency of self-esteem decreased from adolescence to old age, whereas level of self-esteem increased. Big Five personality traits predicted the level, but not the slope, of the trajectories of self-esteem characteristics. Age differences in self-esteem characteristics did not merely reflect age differences in instability and level of positive and negative affect. Finally, self-esteem characteristics showed a stable pattern of interrelations across the life span. Overall, the findings suggest that people’s self-esteem tends to become better adjusted—i.e., more stable, less contingent, and higher—across the life course. 相似文献
218.
Schröter H Fiedler A Miller J Ulrich R 《Journal of experimental psychology. Human perception and performance》2011,37(5):1361-1368
In a simple reaction time (RT) experiment, visual stimuli were stereoscopically presented either to one eye (single stimulation) or to both eyes (redundant stimulation), with brightness matched for single and redundant stimulations. Redundant stimulation resulted in two separate percepts when noncorresponding retinal areas were stimulated, whereas it resulted in a single fused percept when corresponding areas were stimulated. With stimulation of noncorresponding areas, mean RT was shorter to redundant than to single stimulation, replicating the redundant signals effect (RSE) commonly found with visual stimuli. With stimulation of corresponding areas, however, no RSE was observed. This suggests that the RSE is driven by the number of percepts rather than by the number of stimulated receptors or sensory organs. These results are consistent with previous findings in the auditory modality and have implications for models of the RSE. 相似文献
219.
Expectancy-value theory (EVT) is a dominant theory of human motivation. Historically, the Expectancy × Value interaction, in which motivation is high only if both expectancy and value are high, was central to EVT. However, the Expectancy × Value interaction mysteriously disappeared from published research more than 25 years ago. Using large representative samples of 15-year-olds (N = 398,750) from 57 diverse countries, we attempted to solve this mystery by testing Expectancy × Value interactions using latent-variable models with interactions. Expectancy (science self-concept), value (enjoyment of science), and the Expectancy × Value interaction all had statistically significant positive effects on both engagement in science activities and intentions of pursuing scientific careers; these results were similar for the total sample and for nearly all of the 57 countries considered separately. This study, apparently the strongest cross-national test of EVT ever undertaken, supports the generalizability of EVT predictions--including the "lost" Expectancy × Value interaction. 相似文献
220.
Priv.-Doz. Dr. med. Dipl.-Psych. Ulrich Lamparter Dr. med. Christa Holstein Jun.-Prof. Dr. phil. Malte Thießen Prof. Dr. Dorothee Wierling Dr. rer. nat. Dipl.-Psych. Silke Wiegand-Grefe Dr. phil. Dipl.-Psych. Birgit Möller 《Forum der Psychoanalyse》2010,26(4):365-387
Research on the long-term emotional impact of World War II experiences is an important psychoanalytical issue and requires an interdisciplinary approach. In the project: “Witnesses of the ‘Operation Gomorrha (Hamburg Firestorm)’ (1943) and their families” long-term processing of and coping with war experiences of former children and adolescents are investigated by historians and psychoanalysts. A sample of 64 witnesses (34 women, 30 men, average age 75 years) and their families was recruited and investigated by semi-structured interviews. The interviews were analyzed by methods of “renarrated and interpreted history of coping” and group analysis against the background of historical, psychological and cultural approaches. A total of nine prototypical cases give insight into different biographically determined representations of the “Firestorm” and the conjunction with socio-cultural processes. Analysis of coping over the life-time has to take life experiences after the war and during the time of rebuilding into account. The research project attracts much interest among the former “war”-children. 相似文献