全文获取类型
收费全文 | 1193篇 |
免费 | 29篇 |
专业分类
教育 | 927篇 |
科学研究 | 92篇 |
各国文化 | 13篇 |
体育 | 78篇 |
综合类 | 1篇 |
文化理论 | 3篇 |
信息传播 | 108篇 |
出版年
2023年 | 9篇 |
2021年 | 14篇 |
2020年 | 27篇 |
2019年 | 30篇 |
2018年 | 36篇 |
2017年 | 43篇 |
2016年 | 40篇 |
2015年 | 19篇 |
2014年 | 25篇 |
2013年 | 311篇 |
2012年 | 17篇 |
2011年 | 26篇 |
2010年 | 22篇 |
2009年 | 23篇 |
2008年 | 24篇 |
2007年 | 22篇 |
2006年 | 22篇 |
2005年 | 14篇 |
2004年 | 17篇 |
2003年 | 13篇 |
2002年 | 19篇 |
2001年 | 22篇 |
2000年 | 13篇 |
1999年 | 10篇 |
1998年 | 13篇 |
1997年 | 15篇 |
1996年 | 21篇 |
1995年 | 11篇 |
1994年 | 17篇 |
1993年 | 19篇 |
1992年 | 10篇 |
1991年 | 11篇 |
1990年 | 12篇 |
1989年 | 13篇 |
1988年 | 18篇 |
1987年 | 19篇 |
1986年 | 10篇 |
1985年 | 11篇 |
1984年 | 9篇 |
1983年 | 9篇 |
1982年 | 12篇 |
1981年 | 14篇 |
1980年 | 12篇 |
1976年 | 6篇 |
1974年 | 8篇 |
1973年 | 6篇 |
1971年 | 9篇 |
1970年 | 6篇 |
1969年 | 7篇 |
1968年 | 7篇 |
排序方式: 共有1222条查询结果,搜索用时 15 毫秒
161.
Louis Settembrini is the pseudonym of a former chairman of one of the social science departments at the University of Rochester. 相似文献
162.
163.
The aims of this research were to investigate the ways in which students in primary and secondary schools process texts and accompanying visual aids and to ascertain any developmental patterns. Think-aloud protocols were gathered from 119 Grade 5, Grade 7 and Grade 9 students while they read and studied grade-appropriate History and Science materials which contained both text and visual aids (tables, diagrams). Analyses of the think-aloud protocols yielded over 50 different processes, subsumed under 10 major categories. While the History results showed no reliable grade differences in the 10 think-aloud categories, the Science results showed developmental differences. Older students demonstrated a more diverse array of strategies, and explicit linking of text and visual aid information was not as evident in the younger students. ANOVAs following cluster analyses showed weak relationships between cluster membership and outcomes. Implications for instruction are discussed. 相似文献
164.
The short-term memory for sounds of the bottlenosed dolphin was tested using symbolic, identity, and probe forms of the delayed matching-to-sample (DMS) task. The forms differed in the number (one or two) or nature (symbolic or identity matches of sample sounds) of postdelay test stimuli available as memory retrieval cues. Although symbolic DMS was difficult to learn, the final performance level was approximately equal to that for identity or probe DMS. On all tasks, the dolphin’s responses were above 80% correct through to delays of 90 sec and, in some cases, through to delays of 180 and 240 sec, the “limits” being governed mainly by the dolphin’s reluctance to continue being tested at long delays. Encoding of sample stimuli into their learned symbolic representation was hypothesized to have reduced symbolic DMS to a recognition memory task, resulting in the observed equivalence of performance with the other two recognition memory tasks. The probe DMS results, unlike those for identity or symbolic DMS, showed no significant proactive interference effects from samples of prior trials. Instead, proactive interference was traceable to the probe value of the prior trial. Overall, the auditory DMS data for the dolphin were functionally similar to results reported for monkeys tested on symbolic, identity, and probe visual DMS tasks. 相似文献
165.
An Investigation into the Dimensionality of TOEFL Using Conditional Covariance-Based Nonparametric Approach 总被引:1,自引:0,他引:1
This article reports two studies to illustrate methodologies for conducting a conditional covariance-based nonparametric dimensionality assessment using data from two forms of the Test of English as a Foreign Language (TOEFL). Study 1 illustrates how to assess overall dimensionality of the TOEFL including all three subtests. Study 2 is aimed at illustrating how to conduct dimensionality analyses for a testlet-based test by focusing on the Reading Comprehension (RC) section in combination with item content analyses and hypothesis testing. The results of Study 1 indicated that both TOEFL forms involve two dominant dimensions corresponding to the Listening Comprehension section and the combination of the Reading Comprehension section and Structure and Written Expression section. The extensive RC analyses from Study 2 revealed strong evidence that a significant amount of the RC multidimensionality came from testlet effects. Confirmatory analyses coupled with exploratory cluster analyses and substantive item content analyses further identified dimensionality structure having to do with reading subskills. 相似文献
166.
Abstract This paper reports an experimental evaluation of a direct instruction procedure in which children are taught and practise activities to both foster and monitor their comprehension while reading. Three different class groups of low comprehenders, Standard 4, Form 1 and Form 2, were serially exposed to 21 days of 20‐25 minutes instruction in four study activities: summarising, questioning, clarifying and predicting. Instruction was by reciprocal teaching whereby the adult tutor and children took turns leading a dialogue centred around the important topics of the instructional text. The design of this study incorporated both with‐subjects multiple baseline and between‐subjects comparisons, the no treatment comparison groups being average and above average comprehending class peers. Daily comprehension assessment on a different text at the same difficulty level as that used for reciprocal teaching and pre and post intervention scores on a reading comprehension test served as the dependent measures for the study. Results show significant increases in accuracy on comprehension tests for all experimental groups upon introduction of the reciprocal teaching procedure. On completion of the intervention two of these groups scores matched those of the above average controls. Follow‐up probes eight weeks later showed that all groups had maintained their comprehension gains. 相似文献
167.
Moore ML 《The Journal of perinatal education》2001,10(2):43-45
Research studies conducted recently in hospitals located in Switzerland and Canada reveal the importance of birth philosophies in attaining successful birth practices and outcomes. 相似文献
168.
Abstract Previous studies have shown that prior discussion, or the provision of context, both decrease oral reading errors and increase self‐correction amongst low‐progress and mentally retarded readers. This study investigated the effects of prior provision of context upon the reading behaviour of an above average reader. The results indicate that discussion of context (through examination of the relevant illustrations, asking and answering questions, and the verbal introduction of some new words in the text) both significantly decreased errors, and slightly increased the amount of self‐correction for this subject. 相似文献
169.
170.
This study examined the possible selves, goals, and perceptions of “time left” of older adults soon after they entered a life plan community as independent living residents. There has been little research regarding the effect of this life transition on older adults’ self-concept, hopes, and fears. Eighteen residents participated in one-hour personal interviews about their reasons for moving, their possible selves, goals, and perception of time left. Time left was measured in two ways: residents were asked to estimate the number of years they had left and were also asked to mark, on a novel visual analogue measure, how “limited” or “expanded” their time left felt to them. Residents were found to have an average of 6.18 possible selves in total, with more hoped-for possible selves (m = 4.39) than feared possible selves (m = 1.78). The majority of the goals were maintenance goals, followed by self-improvement goals and then avoidance goals. Residents estimated that they would live for 11.64 more years, and the majority reported that this felt like “a lot of time.” Based on their responses to the novel visual analogue measure of time left, two-thirds of the participants reported that their time left felt “expanded” rather than “limited.” Consistent with predictions based on socioemotional selectivity theory, participants with longer subjective life expectancies reported more self-improvement goals and more hoped-for selves. Participants identified more possible selves than documented in previous studies, including almost twice as many hoped-for possible selves. 相似文献