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   7343篇
  免费   92篇
  国内免费   3篇
教育   5046篇
科学研究   956篇
各国文化   70篇
体育   478篇
综合类   2篇
文化理论   51篇
信息传播   835篇
  2021年   66篇
  2020年   82篇
  2019年   139篇
  2018年   188篇
  2017年   159篇
  2016年   155篇
  2015年   100篇
  2014年   131篇
  2013年   1331篇
  2012年   139篇
  2011年   140篇
  2010年   124篇
  2009年   112篇
  2008年   131篇
  2007年   105篇
  2006年   115篇
  2005年   100篇
  2004年   119篇
  2003年   87篇
  2002年   90篇
  2001年   122篇
  2000年   119篇
  1999年   104篇
  1998年   69篇
  1997年   70篇
  1996年   80篇
  1995年   60篇
  1993年   86篇
  1992年   107篇
  1991年   111篇
  1990年   109篇
  1989年   94篇
  1988年   86篇
  1987年   103篇
  1986年   93篇
  1985年   103篇
  1984年   89篇
  1983年   95篇
  1982年   95篇
  1981年   75篇
  1980年   75篇
  1979年   100篇
  1978年   91篇
  1977年   86篇
  1976年   74篇
  1975年   54篇
  1974年   68篇
  1973年   64篇
  1972年   54篇
  1971年   58篇
排序方式: 共有7438条查询结果,搜索用时 15 毫秒
981.
Background: Numerous studies have been conducted to investigate the factors related to science achievement. In these studies, the classroom goal structure perceptions, engagement, and self-efficacy of the students have emerged as important factors to be examined in relation to students’ science achievement.

Purpose: This study examines the relationships between classroom goal structure perception variables (motivating tasks, autonomy support, and mastery evaluation), engagement (behavioral, emotional, cognitive, and agentic engagement), self-efficacy, and science achievement.

Sample: The study participants included 744 seventh-grade students from 9 public schools in two districts of Gaziantep in Turkey.

Design and methods: Data were collected through the administration of four instruments: Survey of Classroom Goals Structures, Engagement Questionnaire, Motivated Strategies for Learning Questionnaire, and Science Achievement Test. The obtained data were subjected to path analysis to test the proposed model.

Results: Students’ perceptions of classroom goal structures (i.e. motivating tasks, autonomy support, and mastery evaluation) were found to be significant predictors of their self-efficacy. Autonomy support was observed to be positively linked to all aspects of engagement, while motivating tasks were found to be related only to cognitive engagement. In addition, mastery evaluation was shown to be positively linked to engagement variables, except for cognitive engagement, and self-efficacy and engagement (i.e. behavioral, emotional, and cognitive engagement) were observed to be significant predictors of science achievement. Finally, results revealed reciprocal relations among engagement variables, except for agentic engagement.

Conclusions: Students who perceive mastery goal structures tend to show higher levels of engagement and self-efficacy in science classes. The study found that students who have high self-efficacy and who are behaviorally, emotionally, and cognitively engaged are more successful in science classes. Accordingly, it is recommended that science teachers utilize inquiry-based and hands-on science activities in science classes and focus on the personal improvement of the students. Furthermore, it is also recommended that they provide students with opportunities to make their own choices and decisions and to control their own actions in science classes.  相似文献   

982.
983.
Chairmen at 38 state and land-grant institutions were found to be involved in three major roles: academic, administrative, and leadership. The academic role consists of duties of student involvement and research activities. Chairmen enjoy this role and report high emphasis on concurrent goals but feel frustrated in terms of time to pursue commensurate activities. The administrative role requires the majority of time and also contains some of the less desirable duties. In addition, administrative goals are seen as over-emphasized. The leadership role involves tasks related to academic personnel and program development. It is a major satisfaction realized by accepting the position of chairman. Developing abilities of faculty members and maintaining academic freedom are the two most important goals in this role. The respondents also made suggestions on changes and development programs which would improve their effectiveness.  相似文献   
984.
High- and low-IQ children in the first, third, and fifth grades performed two free-recall tasks: a sort-recall task with sets of categorically related pictures, and a class-recall task, with children recalling the current members of their school class. All children were deemed to be experts concerning the composition of their school class, but, unlike experts in other domains, had no special motivation associated with their expertise. Recall and clustering on both tasks were high. The high-IQ children performed better than low-IQ children only on the sort-recall task. IQ was significantly correlated with measures of performance on the sort-recall task but not on the class-recall task. The results reflect the fact that the memory benefits associated with being an expert (here, elimination of IQ effects) are related to the greater knowledge the expert possesses and not to factors of motivation.  相似文献   
985.
A three-phase experiment was conducted in which rats received a double-alternation schedule of reward and nonreward. During Phase 1, the baseline period, double-alternation behavior was displayed earlier and more strongly by subjects run last in the daily sequence. This finding suggests that both reward and nonreward odor cues are cumulative over subjects. During Phase 2, a subject-rotation procedure was initiated; that is, each day the last subject in the previous day’s running sequence was moved to the first position in the sequence, etc. Rotation to the first position in the group led to an immediate disruption of responding. During Phase 3, two naive rats were inserted at the beginning of the running sequence and two at the end. The results, which showed that the naive animals placed at the end of the sequence acquired the patterning response much faster than those placed in the beginning positions, are interpreted as reflecting preparedness to respond to such intensified odors.  相似文献   
986.
987.
988.
Although textbooks on educational research give only scant attention to survey research methodology, its extensive use in education provides a strong rationale for improving the preparation of educational researchers in effectively applying survey methods. This study reviews methods for dealing with nonresponse bias, the primary problem presented by survey methods. It also provides an updated review of the literature of studies investigating the effectiveness of incentives to increase survey response rates. We hypothesized that a reanalysis of reviewed studies, using a linear trend test, would resolve the inconsistencies found regarding the effectiveness of incentives to increase response rates. The results of the reanalysis and guidelines for educational researchers in systematically selecting and applying incentives to increase response rates are discussed.  相似文献   
989.
This study built on prior research regarding the effectiveness of the National Center for Research in Early Childhood Education (NCRECE) course by exploring the individual course components. Core aspects of course engagement and performance were described and examined in relation to improvements in the observed quality of teacher–child interactions. Teacher characteristics were also examined as predictors of course engagement and performance. A sample of 150 preschool teachers participated in a semester-long, credit-bearing, college course designed to improve the quality of their emotional, organizational, and instructional interactions with children. Teachers’ participation and performance in the course were high on average. Teachers’ skill level in accurately and specifically explaining other teachers’ instances of effective teacher–child interactions was related to improvements in their own observed teacher–child interactions. Finally, teachers with an early childhood major and those endorsing child-centered beliefs displayed better skills in detecting other teachers’ high-quality interactions with children. Results are discussed in relation to designing more effective early childhood professional development programs.  相似文献   
990.
This clinical treatise discusses this author's concept of “professorial melancholia,” a progressive emotional process characterized by the negating of a university professor's professional motivation, positive attitudinal focus, and adequate personal self-esteem.  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