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231.
Jeremy E. C. Genovese 《The Journal of genetic psychology》2018,179(4):176-182
The Flynn effect is the long-term trend for scores on tests of cognitive ability to increase across cohorts. Several samples of children's human figure drawings, published in 1902, 1926, 1963, and 1968, are examined for evidence of a Flynn effect. Results show that larger percentages of children draw more complete human figures over the course of the 20th century. 相似文献
232.
Erin K. Holmes Hayley M. Holladay E. Jeffrey Hill Jeremy B. Yorgason 《Journal of child and family studies》2018,27(6):1881-1898
This study investigates a moderated mediational model whereby maternal involvement in schooling mediates the association between maternal work-to-family conflict and children’s academic achievement in early adolescence, and socioeconomic contexts interact with maternal work status to moderate this association. Participants reflect a subsample of 725 fifth graders (and their employed mothers and teachers) from the Eunice Kennedy Shriver National Institute of Child Health and Human Development Study of Early Child Care and Youth Development (NICHD SECCYD). Of the children in this subsample, 49.4% were female and 79.7% were White, non-hispanic. On average mothers completed 14.7 years of education (SD?=?2.4), with 75.4% of mothers completing more than a high school education. Multi-group analyses in SEM using Mplus 7.4 tested whether maternal work status would interact with core socioeconomic contexts (e.g., maternal education, child race, marital status, poverty status, work schedule, and number of children in the home) to moderate the relationship between maternal work-to-family conflict, maternal involvement in school, and academic outcomes. Results revealed partial mediation between maternal work-to-family conflict and achievement through maternal involvement in school. Our hypothesis that maternal work status would interact with other core socioeconomic contexts to moderate the relationship between maternal work-to-family conflict, maternal involvement in school, and academic outcomes was supported. We conclude that mothers’ involvement in school may be an important way in which negative outcomes of work-to-family conflict may be minimized. We also highlight the importance of situating maternal employment in a larger familial and socioeconomic context. 相似文献
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Despite its prominence in traditional societies and its apparent commonsense appeal, the moral tradition of Role Ethics has been largely neglected in mainstream normative theory. Role Ethics is the view that the duties and/or virtues of social life are determined largely by the social roles we incur in the communities we inhabit. This essay aims to address two of the main challenges that hinder Role Ethics from garnering more serious consideration as a legitimate normative theory, namely that it is ill-suited to support a theory of right action that can enhance moral reasoning, and that it countenances certain unjust roles such as that of slave or slave-owner. Taking inspiration from contemporary social science, we argue that proponents of Role Ethics can adopt a view that reduces the apparent diversity of role obligations to four prototypical types of role duties. We propose a contemporary version of Role Ethics that coheres with human moral psychology, and which lends itself to a relatively pragmatic theory of right action that precludes the possibility of unjust roles. 相似文献
235.
Jeremy Y. Slocum 《Journal of cognition and development》2018,19(1):87-106
From an early age, children show a tendency to map novel labels onto unfamiliar rather than familiar kinds of objects. Accounts of this tendency have not addressed whether children develop a metacognitive representation of what they are doing. In 3 experiments (each N = 48), preschoolers received a test of the metacognitive disambiguation effect, which involved deciding whether the referent of a novel label was located in a bucket of things “I know” or bucket of things “I don’t know.” Most 4-year-olds passed this test, whereas most 3-year-olds did not. Children’s performance was predicted by their ability to report whether various words and pseudowords were ones that they knew, even after age and vocabulary size were controlled. As children develop an awareness of their lexical knowledge/ignorance, they also develop a metacognitive representation of their tendency to map novel labels onto unfamiliar rather than familiar kinds. 相似文献
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237.
How does one find objects in scenes? For decades, visual search models have been built on experiments in which observers search for targets, presented among distractor items, isolated and randomly arranged on blank backgrounds. Are these models relevant to search in continuous scenes? This article argues that the mechanisms that govern artificial, laboratory search tasks do play a role in visual search in scenes. However, scene-based information is used to guide search in ways that had no place in earlier models. Search in scenes might be best explained by a dual-path model: a 'selective' path in which candidate objects must be individually selected for recognition and a 'nonselective' path in which information can be extracted from global and/or statistical information. 相似文献
238.
In the presence of interference, recall of pairs can critically depend on the diagnostic power of memory of the order of items within the pair. Models of pair memory make different assumptions about whether and how such order information is stored, from convolution-based models, which assume no explicit storage of order, to matrix models and several models that assume a pair is learned by concatenating the representations of the constituent items, which lead to perfect within-pair order memory (given retrieval of the pair). Here we investigate memory for associations and within-pair order by examining the relationship between forward and backward probes of pairs subject to order-dependent associative interference in a double-function list paradigm. Associative interference disrupted the high correlation between forward and backward recall accuracy that is typically observed in standard paired-associate learning, challenging matrix and concatenation-based models. However, participants could overcome some interference due to within-pair order ambiguity, challenging directionally ambiguous convolution-based models. Unexpectedly, the test-retest correlation was reduced for pairs under the influence of interference compared to control pairs. This finding is incompatible with all existing implementations of the model classes we consider. Any model must include an assumption that order encoding (but not retrieval) is unreliable, and the form of this additional mechanism may depend intimately on how a given model is designed. In sum, our findings suggest that within-pair order memory is neither poor nor perfect, pointing to a fallible mechanism for within-pair order learning in verbal association-memory tasks. 相似文献
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240.
Offering reward for performance can motivate people to perform a task better, but better preparation for one task usually means decreased flexibility to perform different tasks. In six experiments in which reward varied between low and high levels, we found that reward can encourage people to prepare more flexibly for different tasks, but only as it increased from the level on the previous trial. When the same high rewards were offered continuously trial after trial, people were more inclined to simply stick with doing what had worked previously. We demonstrated such enhancements in flexibility in task switching, a difficult visual search task, and an easier priming of pop-out search task, which shows that this effect generalizes from executive tasks to perceptual processes that require relatively little executive control. These findings suggest that relative, transient changes in reward can exert more potent effects on behavioral flexibility than can the absolute amount of reward, whether it consists of money or points in a social competition. 相似文献