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   3949篇
  免费   64篇
  国内免费   4篇
教育   2896篇
科学研究   267篇
各国文化   70篇
体育   360篇
综合类   1篇
文化理论   37篇
信息传播   386篇
  2022年   20篇
  2021年   41篇
  2020年   69篇
  2019年   115篇
  2018年   138篇
  2017年   154篇
  2016年   133篇
  2015年   92篇
  2014年   127篇
  2013年   913篇
  2012年   117篇
  2011年   101篇
  2010年   86篇
  2009年   101篇
  2008年   122篇
  2007年   111篇
  2006年   103篇
  2005年   98篇
  2004年   90篇
  2003年   75篇
  2002年   78篇
  2001年   52篇
  2000年   62篇
  1999年   62篇
  1998年   45篇
  1997年   44篇
  1996年   61篇
  1995年   47篇
  1994年   51篇
  1993年   34篇
  1992年   50篇
  1991年   36篇
  1990年   44篇
  1989年   36篇
  1988年   29篇
  1987年   24篇
  1986年   27篇
  1985年   23篇
  1984年   21篇
  1983年   15篇
  1982年   24篇
  1981年   29篇
  1980年   27篇
  1979年   18篇
  1978年   21篇
  1977年   12篇
  1976年   19篇
  1975年   14篇
  1974年   20篇
  1973年   15篇
排序方式: 共有4017条查询结果,搜索用时 46 毫秒
151.

The importance of early literacy instruction and its role in later reading proficiency is well established; however, measures and procedures to screen and monitor proficiency in the area of early literacy are less well researched. The purpose of this study was to (a) examine the technical adequacy and validity of early curriculum-based literacy measures, Letter–Sound Correspondence, Onset Phoneme Identification, and Phoneme Segmentation, developed for use within the problem-solving model in the Minneapolis Public Schools and (b) describe the district-wide implementation of these measures. In general, these measures were found to have adequate reliability and validity, have moderate to moderately high correlations with criterion measures (oral reading, report cards), and be sensitive to growth across the school year. A case study of how these measures are used for screening and progress monitoring to improve reading achievement within 1 school is included. Limitations and future directions are also presented.  相似文献   
152.
153.
154.
In this paper we present a new methodology for detecting differential item functioning (DIF). We introduce a DIF model, called the random item mixture (RIM), that is based on a Rasch model with random item difficulties (besides the common random person abilities). In addition, a mixture model is assumed for the item difficulties such that the items may belong to one of two classes: a DIF or a non-DIF class. The crucial difference between the DIF class and the non-DIF class is that the item difficulties in the DIF class may differ according to the observed person groups while they are equal across the person groups for the items from the non-DIF class. Statistical inference for the RIM is carried out in a Bayesian framework. The performance of the RIM is evaluated using a simulation study in which it is compared with traditional procedures, like the likelihood ratio test, the Mantel-Haenszel procedure and the standardized p -DIF procedure. In this comparison, the RIM performs better than the other methods. Finally, the usefulness of the model is also demonstrated on a real life data set.  相似文献   
155.
156.
157.
158.
159.
This paper presents the results of a major investigation by questionnaire of author attitudes towards scholarly publishing, which was funded by the Publisher's Association. Altogether, the views of nearly 4,000 authors were obtained and this paper concerns just those thousand or so authors who accepted the invitation to write freely about their own personal feelings and experiences. Using QSR N6 textual analysis software, their comments were processed and themes extracted. While the rest of the questionnaire, which was formed of closed‐question, tick‐box type questions, clearly must have had some impact on their thinking, the authors had considerable latitude in regard to what they could say. The paper provides a unique opportunity to hear their views directly. The pressing topics turned out to be (in rough order of concern): the peer‐review system, copyright, journal prices, alternative business models for journal publishing, big deals, Elsevier, electronic publishing and digital journals.  相似文献   
160.
The logs of four universities using the OhioLINK journal system were evaluated for a period of fifteen months using deep log analysis methods in order to compare and contrast the information seeking behaviour of their users. Large differences were found, especially between the research and teaching universities. Methodological problems associated with making the comparisons are discussed in some detail especially in terms of defining online sessions.  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