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   35694篇
  免费   569篇
  国内免费   150篇
教育   25313篇
科学研究   3783篇
各国文化   311篇
体育   2762篇
综合类   44篇
文化理论   298篇
信息传播   3902篇
  2021年   307篇
  2020年   534篇
  2019年   748篇
  2018年   1047篇
  2017年   1079篇
  2016年   1044篇
  2015年   628篇
  2014年   833篇
  2013年   6542篇
  2012年   815篇
  2011年   896篇
  2010年   673篇
  2009年   654篇
  2008年   734篇
  2007年   732篇
  2006年   672篇
  2005年   621篇
  2004年   590篇
  2003年   554篇
  2002年   590篇
  2001年   630篇
  2000年   614篇
  1999年   619篇
  1998年   341篇
  1997年   362篇
  1996年   418篇
  1995年   367篇
  1994年   325篇
  1993年   320篇
  1992年   485篇
  1991年   480篇
  1990年   522篇
  1989年   523篇
  1988年   470篇
  1987年   431篇
  1986年   436篇
  1985年   528篇
  1984年   457篇
  1983年   428篇
  1982年   360篇
  1981年   356篇
  1980年   310篇
  1979年   451篇
  1978年   382篇
  1977年   357篇
  1976年   295篇
  1975年   245篇
  1974年   259篇
  1973年   266篇
  1972年   219篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
971.
Several authors have suggested reasons for children transferring to new schools, and they have hypothesized that the reasons may affect the nature and tenure of the transition process. The present study investigated the reasons parents of 451 elementary school children gave for changing schools and demonstrated that the reasons influenced children's ability to adjust to their new schools. Specifically, children transferring because their old school closed were more competent academically and had a higher average socioeconomic status than did the other groups. On the other hand, those transferring because of changing households had poorer academic performance and more stressful life events on average than the other groups. Finally, reasons for moving not only vary according to race, but the effects of the reasons are different for each racial group. Implications for school personnel seeking to integrate transfer students into their schools effectively are discussed.  相似文献   
972.
The federal requirement to develop an Individual Family Service Plan (IFSP) for all infants and toddlers with special needs has a major conceptual difficulty that has, to date, been inadequately addressed in the literature. That problem stems from the linkage of family service to family assessment. Many authorities, attracted to parental “empowerment” theory, advocate that parents should be the authors rather than (or as well as) the objects of assessment, and that professionals and parents should be partners in assessing needs and planning services. When there is disagreement, professionals should defer to parents, who are in the best position to assess their own needs. We question the wisdom of conducting assessments with, or on, families of targeted children. But, if there are to be assessments, we argue that families are better served, and mutual respect better preserved, by a traditional complementary relationship: The professional controls the evaluation process, determines the problems (with the input of the family), and makes recommendations, which parents are then free to reject.  相似文献   
973.
Meta-analysis is an analysis of analyses. It is a technique widely used by researchers and practitioners to aggregate and summarize statistically reported empirical educational research. In 10 years, meta-analysis appeared more than 600 times in research journals and dissertation abstracts. Although most meta-analyses were reported as significant, few of the findings determined how many unpublished “no-effect” studies, if sampled, would have invalidated significance. If significant meta-analysis results are over represented through selective sampling, hucksterism in the form of sampling bias exists. An explanation for using a follow-up test called the fail-safe N is provided with tables constructed to assist researchers and practitioners to estimate, without calculation, the relative stability of meta-analysis results. The implication is that failsafe N should routinely be used and reported in meta-analysis research.  相似文献   
974.
The Parenting Inventory: Young Children (PI) is a rating scale that measures the developmental expectations and behaviors of parents of children who are between the ages of 1 and 4 years, 11 months. Using a representative urban sample of 1,056 mothers, the PI was found to discriminate successfully between parents with children of different ages and to have substantial item-construct correlations (content validity). The PI was not strongly related to the Adult-Adolescent Parenting Inventory, a measure of parenting attitudes (discriminant validity). Reasons for this latter finding are discussed. Potential uses of the PI for practitioners working with parents in the schools are described.  相似文献   
975.
976.
977.
978.
The overlap of words specifically taught in reading textbooks with the contents of standardized reading achievement tests may be a source of bias that is frequently overlooked in psychoeducational assessments. This study compares the standardized achievement test performance of 62 second graders receiving instruction in two different reading curricula (Open Court and Houghton-Mifflin) to determine whether either curriculum generates different quantitative estimates of reading achievement. Reading subtest scores derived from the Kaufman Test of Educational Achievement-Brief Form (K-TEA), the Wide Range Achievement Test-Revised (WRAT-R), and the Reading Recognition and Reading Comprehension subtests from the Peabody Individual Achievement Test (PIAT) were examined. Grade level equivalents and scaled scores from the California Achievement Test (CAT) were also examined. Three Curriculum × Test repeated measures ANOVAs were conducted using grade level scores (2×7), standard scores (2×4), and CAT scaled scores (2 × 5) as dependent measures. A significant Curriculum × Test interaction was identified, suggesting differences among tests in estimates of reading ability as a function of the reading program.  相似文献   
979.
One hundred thirty-eight fifth-grade students from three upstate New York school districts were administered a 1930s version of the Pintner General Ability Tests: Verbal Series. Scores from this test were compared and correlated with scores from current IQ and achievement tests. The Pintner means were similar to those of the current IQ tests; the correlations of the Pintner with the other tests were of the same order as those typically reported among contemporary measures; and item difficulty, as indicated by rank order, appeared similar for the current sample and the 1930s norm groups. The findings are discussed with reference to research that has shown sharp increases in IQs of Americans since the 1930s and questions concerning changes in mental ability measures.  相似文献   
980.
A common method used to interpret raw scores is to convert them into percentile rank. The broad application of percentile rank in almost all norm-referenced tests, and the exclusive use in some tests, requires the conversion of raw scores. Because percentile rank is not a linear transformation of raw scores, percentile-rank transformation in the lower and upper part of the raw-score distribution relates percentile rank and raw scores differently than in the center of the raw-score distribution. This paper describes the popularity of using percentile rank and offers an interpretation of the use of percentile rank with normal and skewed score distributions.  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