首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   38405篇
  免费   824篇
  国内免费   13篇
  2023年   111篇
  2021年   156篇
  2020年   315篇
  2019年   365篇
  2018年   3828篇
  2017年   3183篇
  2016年   2698篇
  2015年   583篇
  2014年   532篇
  2013年   2170篇
  2012年   1382篇
  2011年   3214篇
  2010年   2954篇
  2009年   2015篇
  2008年   2398篇
  2007年   2878篇
  2006年   802篇
  2005年   919篇
  2004年   853篇
  2003年   825篇
  2002年   735篇
  2001年   377篇
  2000年   361篇
  1999年   331篇
  1998年   320篇
  1997年   303篇
  1996年   277篇
  1995年   241篇
  1994年   239篇
  1993年   208篇
  1992年   208篇
  1991年   192篇
  1990年   188篇
  1989年   151篇
  1988年   109篇
  1987年   152篇
  1986年   163篇
  1985年   199篇
  1984年   192篇
  1983年   187篇
  1982年   171篇
  1981年   174篇
  1980年   152篇
  1979年   146篇
  1978年   162篇
  1977年   134篇
  1976年   135篇
  1975年   106篇
  1974年   118篇
  1973年   99篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
151.
It was hypothesized (1) that with age children would rely increasingly upon information about intention, rather than overt behavior, when attributing dispositional features to others; and (2) that, developmentally, “restricted” dispositional attributions (i.e., those that assume the operation of highly specific situation-response relationships) would precede “generalized” dispositional attributions (which assume the operation of a dispositional concept between broad classes of situations and responses). An experiment is reported that provides support for the first, though not the second, of these hypotheses.  相似文献   
152.
153.
In a recent article (Clark, 1983), I concluded that it is invalid to use the success of the Velten Mood Induction Procedure as evidence for cognitive theories of depression. Riskind and Rholes (1985) challenge this conclusion. Their arguments are discussed and critically evaluated.  相似文献   
154.
David Harrah 《Synthese》1985,63(3):275-294
In this paper we sketch a logic of message and reply. The logic is intended for application in a wide variety of situations, not restricted to the two-person, turn-taking situation. Each message has a body and a vector; the vector specifies the from, to, and the like. To reply to a message, it suffices to give either (1) a complete reply to the body or (2) a corrective reply to at least one presumption derivable from the vector. We discuss the problems of achieving effectiveness and completeness with respect to certain aspects of communication. The results are mixed. In section 9 we argue semi-formally that, in a certain sense, dialogue is necessary. Finally we note that this logic is not a rival of other approaches but may be combinable with them.  相似文献   
155.
This paper reports an experiment testing two hypotheses. The first is that the value or utility associated with a payment to one's self and a payment to a co-worker can be represented as an additive function of a utility for own payment (nonsocial utility) and a utility for the difference between own and other's payment (social utility). The second hypothesis is that changes in the amount of work accomplished by one's self and/or the other should influence the social, but not the the nonsocial utilities. Support for both hypotheses is reported.  相似文献   
156.
This experimental study examined the effects on syllogistic reasoning in grades 6 and 12 of certain contextual narrative variables. The experimental task consisted of 27 varied syllogistic problems based on information contained in three narrative texts—a fantasy passage, a realistic passage, and a contractual passage. Versions of these texts were constructed for each group reading level. Analysis of the data revealed several significant interactions between subject groups and treatment variables. In particular, younger subjects performed better than grade 12 subjects on problems following the fantasy narrative, while the older subjects did better with the other two passages. The results suggest that some orthodox views about concrete-versus formal-operational reasoning abilities and about the distinction between abstract and concrete materials need to be reassessed within a discourse-processing framework that is sensitive to the discourse worlds in which problems are embedded.The author wishes to acknowledge the support of an Isaak Walton Killam Doctoral Scholarship for this research.  相似文献   
157.
Educably mentally retarded (EMR) students and nonhandicapped students from their mainstream classes completed semantic differential ratings of a stereotypic popular teen-ager, juvenile delinquent, and special education student. Subjects also rated their global self-concepts and situation-specific self-concepts within the mainstream and the special class settings. Ratings were done at the beginning (Time 1) and the end (Time 2) of a semester. Results showed that mainstream classes did not "de-label" EMR students. Within the mainstream class, the number of EMR students who saw themselves as similar to a special education student significantly increased over time. Moreover, at Time 2, EMR students were more likely to think of themselves as similar to a special education student in their mainstream class than in their special education class. However, EMR subjects' global self-concepts did not change. Implications for mainstreaming are discussed.  相似文献   
158.
159.
The relationship of characteristics of the social environment to the adaptation of adolescents from high-risk predisposing environments was examined. Specifically, the degree to which adolescents' perceptions of various dimensions of their family and school environment as well as sources of social support related to differential levels of personal well-being and academic adjustment was explored. Multiple regression analyses revealed differences in the salience of the dimensions of the social environment as a function of the particular sphere of functioning under consideration. Implications of the findings for developing a model for understanding the relative vulnerability of individuals at risk as well as of the design of preventive interventions are discussed.  相似文献   
160.
Recent evidence suggests that people are sensitive to the degree of contingency between their actions and ensuing outcomes, but little is known about the way in which such contingency judgments develop as more and more information about the contingency is provided. Three experiments examined this issue in the context of a video game. In Experiment 1, it was found that contingency judgments follow growth functions: When the contingency was positive, judgments increased toward a positive asymptote, and when the contingency was negative, judgments decreased toward a negative asymptote. When the contingency was zero, judgments themselves remained close to zero but were biased by the overall frequency with which the outcome occurred. In Experiment 2, it was shown that the growth function was not the result of the anchoring of early judgments at the zero point. The bias in judgments when the contingency is zero was investigated in Experiment 3. The results are discussed in terms of rule-based analyses and contemporary theories of conditioning.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号