全文获取类型
收费全文 | 1492篇 |
免费 | 25篇 |
国内免费 | 3篇 |
专业分类
教育 | 1110篇 |
科学研究 | 76篇 |
各国文化 | 19篇 |
体育 | 149篇 |
文化理论 | 12篇 |
信息传播 | 154篇 |
出版年
2022年 | 8篇 |
2021年 | 16篇 |
2020年 | 39篇 |
2019年 | 52篇 |
2018年 | 62篇 |
2017年 | 86篇 |
2016年 | 63篇 |
2015年 | 54篇 |
2014年 | 45篇 |
2013年 | 339篇 |
2012年 | 46篇 |
2011年 | 50篇 |
2010年 | 35篇 |
2009年 | 44篇 |
2008年 | 42篇 |
2007年 | 39篇 |
2006年 | 32篇 |
2005年 | 26篇 |
2004年 | 27篇 |
2003年 | 12篇 |
2002年 | 30篇 |
2001年 | 17篇 |
2000年 | 24篇 |
1999年 | 13篇 |
1998年 | 16篇 |
1997年 | 21篇 |
1996年 | 24篇 |
1995年 | 22篇 |
1994年 | 26篇 |
1993年 | 16篇 |
1992年 | 10篇 |
1991年 | 6篇 |
1990年 | 13篇 |
1989年 | 11篇 |
1988年 | 10篇 |
1987年 | 5篇 |
1986年 | 12篇 |
1985年 | 6篇 |
1984年 | 11篇 |
1983年 | 12篇 |
1982年 | 8篇 |
1981年 | 10篇 |
1980年 | 9篇 |
1979年 | 7篇 |
1978年 | 10篇 |
1976年 | 6篇 |
1975年 | 8篇 |
1974年 | 6篇 |
1973年 | 5篇 |
1971年 | 5篇 |
排序方式: 共有1520条查询结果,搜索用时 15 毫秒
11.
The purpose of this simulation study was to assess the performance of latent variable models that take into account the complex sampling mechanism that often underlies data used in educational, psychological, and other social science research. Analyses were conducted using the multiple indicator multiple cause (MIMIC) model, which is a flexible and effective tool for relating observed and latent variables. The data were simulated in a hierarchical framework (e.g., individuals nested in schools) so that a multilevel modeling approach would be appropriate. Analyses were conducted accounting for and not accounting for the nested data to determine the impact of ignoring such multilevel data structures in full structural equation models. Results highlight the differences in modeling results when the analytic strategy is congruent with the data structure and what occurs when this congruency is absent. Type I error rates and power for the standard and multilevel methods were similar for within-cluster variables and for the multilevel model with between-cluster variables. However, Type I error rates were inflated for the standard approach when modeling between-cluster variables. 相似文献
12.
Undergraduate biology education is often viewed as being focused on memorization rather than development of students’ critical-thinking abilities. We speculated that open-note testing would be an easily implemented change that would emphasize higher-order thinking. As open-note testing is not commonly used in the biological sciences and the literature on its effects in biology education is sparse, we performed a comprehensive analysis of this intervention on a primary literature–based exam across three large-enrollment laboratory courses. Although students believed open-note testing would impact exam scores, we found no effect on performance, either overall or on questions of nearly all Bloom’s levels. Open-note testing also produced no advantage when examined under a variety of parameters, including research experience, grade point average, course grade, prior exposure to primary literature–focused laboratory courses, or gender. Interestingly, we did observe small differences in open- and closed-note exam performance and perception for students who experienced open-note exams for an entire quarter. This implies that student preparation or in-test behavior can be altered by exposure to open-note testing conditions in a single course and that increased experience may be necessary to truly understand the impact of this intervention. 相似文献
13.
14.
15.
16.
Issues associated with school absenteeism have attracted considerable attention and have long been one of the focal points of government strategies for school improvement. Pupil non-attendance is not a new phenomenon and featured prominently in Her Majesty’s Inspectors’ reports from 1839. This paper outlines the patterns of and influences on elementary education in early Victorian industrial Monmouthshire during the period 1839–1865. The twin problems of irregular attendance and early withdrawal of pupils are discussed together with the limitations and unreliability of contemporary statistics. An examination of the reasons for absence is then discussed together with the remedies proposed to alleviate the problem with particular reference to the contribution of the Prize Schemes. The paper illustrates the disadvantages of basing an educational system on voluntary endeavour and enlightened self-interest and highlights the paradox that, despite the introduction of mandatory attendance, the problem is still persistent and protracted and finding definitive solutions still remains elusive. 相似文献
17.
ABSTRACTDue to budget constraints, schools in the United States have increasingly turned to community arts organizations for support. School-community arts partnership stakeholders collaborate because of shared missions to provide students with valuable arts learning experiences. Investigations of these initiatives indicate that these partnerships improve arts learning opportunities and increase public support and resources for arts education. However, not much is known about the experiences and perspectives of the arts organizations that participate in these partnerships. Coordinating collective efforts with a multitude of institutions and interests poses challenges. In this study, we examine survey data collected from arts organization administrators who participated in a large-scale school-community arts partnership initiative. We find that these organizations are generally positive about their impacts on students’ educational outcomes, but there is substantial variation in these views. We also find that organizations differ in their levels of support for these collective efforts. Sources of this variation appear to be attributable to organizations’ preexisting resources and extent to which they are established. While this difference in levels of support is potentially inevitable, we find evidence that the operations handled by the “backbone” organization, i.e. the initiative’s facilitators and overseers, can significantly influence organizations’ levels of support for these efforts. Organizations are more likely to support these collaborative efforts when they believe the backbone organization ensures transparency with initiative operations, provides regular, effective communication, and effectively resolves competing priorities. 相似文献
18.
Brian Klebig Joanna Goldonowicz Elisa Mendes Ann Neville Miller James Katt 《Communication Research Reports》2016,33(2):152-158
This study investigated the combined role of instructor communication variables (nonverbal immediacy and self-disclosure), instructor credibility (competence, caring, and trustworthiness), and student personality traits (extraversion, neuroticism, agreeableness, conscientiousness, and openness) in predicting students’ uncivil behaviors in class. A total of 406 students completed online questionnaires regarding the instructor of the class they attended prior to the one in which the study was administered. Personality and instructor behavior variables contributed approximately equally to explaining variance in student incivility. Students’ conscientiousness and agreeableness had direct negative relationships with incivility, whereas instructors’ amount and negativity of self-disclosure had direct positive relationships with incivility. 相似文献
19.
Race walking is an Olympic event where no visible loss of contact should occur and the knee must be straightened until midstance. The purpose of this study was to analyse ground reaction forces of world-class race walkers and associate them with key spatiotemporal variables. Nineteen athletes race walked along an indoor track and made contact with two force plates (1000 Hz) while being filmed using high-speed videography (100 Hz). Race walking speed was correlated with flight time (r = .46, p = .049) and flight distance (r = .69, p = .001). The knee's movement from hyperextension to flexion during late stance meant the vertical push-off force that followed midstance was smaller than the earlier loading peak (p < .001), resulting in a flattened profile. Athletes with narrower stride widths experienced reduced peak braking forces (r = .49, p = .046), peak propulsive forces (r = .54, p = .027), peak medial forces (r = .63, p = .007) and peak vertical push-off forces (r = .60, p = .011). Lower fluctuations in speed during stance were associated with higher stride frequencies (r = .69, p = .001), and highlighted the importance of avoiding too much braking in early stance. The flattened trajectory and consequential decrease in vertical propulsion might help the race walker avoid visible loss of contact (although non-visible flight times were useful in increasing stride length), while a narrow stride width was important in reducing peak forces in all three directions and could improve movement efficiency. 相似文献
20.
AnnaMarie Conner Kelly W. Edenfield Brian W. Gleason Filyet Asli Ersoz 《Journal of Mathematics Teacher Education》2011,14(6):483-504
In this article, we report on a study of beliefs about mathematics, teaching, and proof conducted with six prospective secondary
mathematics teachers as they completed a two-semester sequence of a content course and a methods course. The initial beliefs
of the participants were identified using interview and survey data, and potential shifts in beliefs were examined through
further interview and survey data combined with classroom observations and written work. While their beliefs about mathematics
and proof appeared to be relatively stable, their beliefs about teaching shifted from a more teacher-centered view to beliefs
that foreground the activities and understandings of the students. These shifts are analyzed using the construct of belief
structures, and activities and events from the courses that may have facilitated the shifts are identified. The results are
consistent with the literature in some respects, such as the stability of the participants’ beliefs about mathematics. On
the other hand, our results present new information about how prospective secondary mathematics teachers’ beliefs about teaching
may be impacted. 相似文献