全文获取类型
收费全文 | 8788篇 |
免费 | 146篇 |
国内免费 | 7篇 |
专业分类
教育 | 6456篇 |
科学研究 | 525篇 |
各国文化 | 162篇 |
体育 | 743篇 |
综合类 | 3篇 |
文化理论 | 135篇 |
信息传播 | 917篇 |
出版年
2022年 | 55篇 |
2021年 | 83篇 |
2020年 | 163篇 |
2019年 | 237篇 |
2018年 | 310篇 |
2017年 | 320篇 |
2016年 | 306篇 |
2015年 | 230篇 |
2014年 | 261篇 |
2013年 | 1918篇 |
2012年 | 243篇 |
2011年 | 240篇 |
2010年 | 219篇 |
2009年 | 193篇 |
2008年 | 293篇 |
2007年 | 221篇 |
2006年 | 218篇 |
2005年 | 199篇 |
2004年 | 159篇 |
2003年 | 194篇 |
2002年 | 168篇 |
2001年 | 140篇 |
2000年 | 120篇 |
1999年 | 113篇 |
1998年 | 112篇 |
1997年 | 113篇 |
1996年 | 117篇 |
1995年 | 122篇 |
1994年 | 120篇 |
1993年 | 96篇 |
1992年 | 114篇 |
1991年 | 106篇 |
1990年 | 106篇 |
1989年 | 94篇 |
1988年 | 85篇 |
1987年 | 73篇 |
1986年 | 68篇 |
1985年 | 73篇 |
1984年 | 61篇 |
1983年 | 75篇 |
1982年 | 74篇 |
1981年 | 81篇 |
1980年 | 83篇 |
1979年 | 74篇 |
1978年 | 54篇 |
1977年 | 45篇 |
1976年 | 53篇 |
1975年 | 45篇 |
1974年 | 41篇 |
1971年 | 30篇 |
排序方式: 共有8941条查询结果,搜索用时 15 毫秒
61.
Qingli Lei Rose A. Mason Yan Ping Xin John L. Davis Marie David Catharine Lory 《Learning disabilities research & practice》2020,35(4):201-217
This single-case meta-analysis is the first to provide a quantitative synthesis of the published literature on mathematics word problem-solving intervention studies for English learners with learning disabilities and mathematics difficulties. A total of ten single-subject studies were included for analysis. The current study investigated the magnitude of the effect of mathematics interventions targeting the improvement of students’ mathematics word problem-solving performance, and analyzed variables that moderated this effect. Results indicate a moderate overall effect size of 0.81 (95% CI [0.71, 0.90]) on word problem-solving performance for English learners with learning disabilities and mathematics difficulties. Moderator variables such as the implementer of the interventions, instructional focus, and word problem-solving content significantly moderated the mathematics intervention effects. 相似文献
62.
63.
64.
65.
David Alan George Poh-Ling Tan Jeffrey Frank Clewett 《Environmental Education Research》2016,22(1):62-88
Using a participatory learning approach, we report on the delivery and evaluation of a climate change and risk assessment tool to help manage water risks within the agricultural sector. Post-graduate water-professional students from a range of countries, from both developed and emerging economies were involved in using this tool. Our approach included participative learning tools – group discussion, software, and risk matrices. The materials developed met the needs of the students, allowing these students to incorporate their learning and adapt the package of materials for use in their home countries. Analysis of evaluations show that the tools and materials are particularly useful and emphasizes the need for sound learning materials and tools, funding to deliver training, and policy support to accelerate education and adoption of authentic climate change adaptation practices. The expected benefits for water professionals about climate change will be translated into improved socioeconomic and environmental outcomes if adopted. 相似文献
66.
67.
68.
69.
David Andrich 《Educational Measurement》2016,35(4):25-30
Since Cronbach's (1951) elaboration of α from its introduction by Guttman (1945), this coefficient has become ubiquitous in characterizing assessment instruments in education, psychology, and other social sciences. Also ubiquitous are caveats on the calculation and interpretation of this coefficient. This article summarizes a recent contribution (Andrich, 2015) on the use of coefficient α which complements these many caveats. It shows that in the presence of a simple bifactor structure of a scale where unique components of variance are homogeneous in magnitude, three components of variance and the common latent common correlation among the subscales can be calculated from the ratio of two calculations of α, one at the level of the items, the other at the level of the subscales. It was suggested that these two ready calculations and their interpretation, and the reporting of all four indices in the analysis of scales with a subscale structure, would reduce the misinterpretation of this coefficient. An illustrative example of the application of the calculations is also shown. 相似文献
70.
David Burleigh 《Publishing Research Quarterly》2017,33(4):380-391
The library channel is often underappreciated as a key part of a publisher’s business strategy. In an age where publishers are constantly seeking new revenue and marketing opportunities, presence in the library—digitally—can yield significant growth. This paper examines the library channel, its business model based on library lending, the performance of eBooks and audiobooks across all subjects, and consumer reading behavior. Digital Book Clubs, a relatively new phenomenon, are also defined and illustrated with examples demonstrating the library’s valuable role in increasing discoverability and ultimately sales. 相似文献