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   458篇
  免费   5篇
教育   351篇
科学研究   17篇
各国文化   10篇
体育   31篇
综合类   1篇
文化理论   3篇
信息传播   50篇
  2024年   8篇
  2022年   4篇
  2021年   7篇
  2020年   12篇
  2019年   19篇
  2018年   16篇
  2017年   27篇
  2016年   33篇
  2015年   24篇
  2014年   18篇
  2013年   101篇
  2012年   10篇
  2011年   18篇
  2010年   11篇
  2009年   6篇
  2008年   13篇
  2007年   15篇
  2006年   6篇
  2005年   11篇
  2004年   13篇
  2003年   6篇
  2002年   7篇
  2001年   4篇
  2000年   3篇
  1999年   5篇
  1998年   2篇
  1997年   2篇
  1996年   5篇
  1995年   3篇
  1993年   3篇
  1992年   3篇
  1990年   3篇
  1988年   2篇
  1987年   4篇
  1985年   5篇
  1984年   1篇
  1982年   1篇
  1981年   1篇
  1980年   6篇
  1979年   4篇
  1978年   3篇
  1977年   1篇
  1976年   1篇
  1973年   3篇
  1969年   1篇
  1968年   1篇
  1924年   1篇
  1922年   1篇
  1919年   3篇
  1887年   2篇
排序方式: 共有463条查询结果,搜索用时 0 毫秒
11.
    
In Experiment 1, rats were trained to leverpress on a variable ratio (VR) 30 schedule with a 500-msec delay between the reinforced response and food delivery. Subjects that experienced a signal during the delay responded faster than did control subjects that received the stimulus un-correlated with reinforcement. Higher response rates were obtained when the stimulus used to signal reinforcement was auditory rather than visual. Experiments 2 and 3 compared the effects of signaling reinforcement with either a localized or a diffuse light on responding maintained by VR schedules of reinforcement. Elevated response rates were observed with the diffuse stimulus, but the localized stimulus failed to produce such potentiation. Experiment 3 also examined the conditioned reinforcing power of localized and diffuse visual stimuli. These results are discussed with reference to (1) theories of selective association and sign tracking and (2) their implications for current theories of signaling reinforcement.  相似文献   
12.
    
This investigation examines how the process of instructional consultation (IC) supports consultees' problem-solving and fosters change in how the consultees understand pertinent work problems. The setting was a mid-Atlantic elementary school's Instructional Consultation Team, and the participants were 13 case manager consultants and 5 teacher consultees. A micro-ethnographic research approach was used and 4 primary sources of data collected: interviews, direct observations, consultation documents, and IC training documents. Analysis of the data uncovered 4 general themes related to the participants' problem-solving and evolving understanding of the work issues. In the discussion, the question of how IC is a constructive process that promotes consultees' development is considered.  相似文献   
13.
    
In spite of the name, simple linear regression presents a number of conceptual difficulties, particularly for introductory students. This article describes a simulation tool that provides a hands‐on method for illuminating the relationship between parameters and sample statistics.  相似文献   
14.
Research in Science Education - This study examines science interests, efficacy, attitudes, and identity—referred to as affinities, in the context of an informal science outreach program for...  相似文献   
15.
16.
The Simple View of Reading states that reading comprehension is the product of word recognition and listening comprehension. Whereas much research has focused on word recognition accuracy, recent attention has been directed toward word recognition fluency. The current study investigated whether a separate fluency component should be added to the Simple View of Reading. A battery of reading and language measures was administered to 604 children in second, fourth, and eighth grades. Approximately half these children had language and/or nonverbal cognitive impairments in kindergarten, but weighting procedures were used to reduce the potential bias this sampling characteristic may have entailed. Structural equation modeling was used to determine whether fluency accounted for unique variance in reading comprehension after controlling for word recognition accuracy and listening comprehension. Individual profile analyses were conducted to determine the number of individual participants who␣had poor fluency in the spite of good word recognition accuracy and listening comprehension. Results showed that fluency did not account for unique variance in reading␣comprehension and that few individuals had problems in fluency separate from word recognition accuracy or listening comprehension. Thus, it does not appear that a separate fluency component should be added to the Simple View of Reading.  相似文献   
17.
This study investigates the impact of an informal science outreach programme built around theories of identity formation and self-efficacy on middle school girls’ science affinities. A lottery-based, randomised control trial was used to identify programme effects on four science affinity outcomes: science interests, efficacy with science, science attitudes, and science identity. A multivariate analysis of variance demonstrated that programme participants scored higher than their control group peers on weighted composite of post-programme affinity indicators. These results suggest that informal science education may offer a venue through which to support the formation of science identities and efficacy in girls. Implications for including psychosocial support elements into science classroom pedagogy and science education standards are discussed.  相似文献   
18.
19.
20.
    
Over the past decade, there has been a growing appreciation of metascience issues in psychological science. Using data collected from 2615 posters presented at the 2021 biennial meeting of the Society for Research in Child Development, this article examines the use of transparent research practices to increase rigor and reproducibility as well as generalizability through greater inclusivity of diverse samples. Research presented through poster presentations was heavily skewed toward quantitative studies featuring American researchers using Western hemisphere samples. Sharing of data/materials, preregistrations, and replications were uncommon. During a time when governments are increasingly requiring more open practices and access, this research provides an important baseline by which developmental science can benchmark progress toward the goals of greater inclusivity and openness.  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