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   2717篇
  免费   276篇
  国内免费   71篇
  2024年   16篇
  2023年   95篇
  2022年   58篇
  2021年   68篇
  2020年   166篇
  2019年   213篇
  2018年   180篇
  2017年   195篇
  2016年   146篇
  2015年   104篇
  2014年   151篇
  2013年   414篇
  2012年   50篇
  2011年   74篇
  2010年   59篇
  2009年   56篇
  2008年   118篇
  2007年   109篇
  2006年   100篇
  2005年   106篇
  2004年   84篇
  2003年   69篇
  2002年   54篇
  2001年   51篇
  2000年   40篇
  1999年   37篇
  1998年   31篇
  1997年   23篇
  1996年   32篇
  1995年   23篇
  1994年   21篇
  1993年   27篇
  1992年   15篇
  1991年   24篇
  1990年   10篇
  1989年   3篇
  1988年   4篇
  1987年   2篇
  1986年   2篇
  1985年   6篇
  1984年   4篇
  1983年   1篇
  1981年   5篇
  1980年   2篇
  1977年   8篇
  1976年   5篇
  1975年   3篇
排序方式: 共有3064条查询结果,搜索用时 15 毫秒
261.
The authors explored whether young children can distinguish potential secrets from nonsecrets by their content, as can older children, adolescents, and adults. Ninety children, 4, 5, and 6 years old, rated the secrecy of items from an adult-validated list of personal information about an age- and gender-appropriate puppet. Two factors of the children's data corresponded to the adult categories of nonsecrets and secrets, and a third factor corresponded to surprises. All ages rated surprises as significantly more secret than nonsecret items; however, the surprise items contained linguistic cues to secrecy. A tendency to rate nonsecrets as secret decreased with age, but only the 6-year-olds rated secrets other than surprises as significantly more secret than nonsecrets. Thus, children acquire the implicit rules defining secret content from a somewhat later age than that reported for the cognitive or behavioral capacities for secrecy.  相似文献   
262.
263.
264.
Preschool-aged children (M = 42.44 months-old, SD = 8.02) participated in a short-term longitudinal study investigating the effect of educational media exposure on social development (i.e., aggression and prosocial behavior) using multiple informants and methods. As predicted, educational media exposure significantly predicted increases in both observed and teacher reported relational aggression across time. Follow-up analyses showed that educational media exposure also significantly predicted increases in parent reported relational aggression across more than a two year period. Results replicate and extend prior research that has demonstrated links between educational media exposure and relational aggression, but not physical aggression, during early childhood.  相似文献   
265.
The purpose of this study was to examine developmental change and the influence of shyness on social problem-solving (SPS). At 24, 36, and 48 months, children (N = 570) were observed while interacting with an unfamiliar peer during an SPS task and at 24 months, maternal report of shyness was collected. Results showed that across the full sample, children displayed low but stable levels of withdrawn SPS and increasing levels of SPS competence over development. In addition, results showed multiple trajectories of withdrawn and competent SPS. Shyness was associated with high-increasing and high-decreasing withdrawn SPS trajectories compared with the low-increasing withdrawn SPS trajectory. Shyness was also associated with the low-increasing compared with the high-increasing SPS competence trajectory. Findings demonstrate the development of SPS competence over early childhood, and the influence of early shyness on this developmental course, with some shy children showing improvement in SPS skills and others continuing to show SPS difficulties over time.  相似文献   
266.
This study examined the quality of preschool classroom experiences through the combination of children's individual patterns of engagement and teachers' classroom-level interactions in predicting children's gains in school readiness. A sample of 605 children and 309 teachers participated. The quality of children's engagement and teacher interactions was directly observed in the classroom, and direct assessments of children's school readiness skills were obtained in the fall and again in the spring. Latent profile analysis was used to examine children's patterns of engagement with teachers, peers, and tasks. Children's engagement and the quality of teacher interactions were associated with gains in school readiness skills. The effect of children's individual classroom engagement on their expressive vocabulary was moderated by classroom-level teacher interactions. The results suggest that when teachers engage in highly responsive interactions across the children in their classrooms, children may develop more equitable school readiness skills regardless of their individual engagement patterns.  相似文献   
267.
Abstract

During the last years, different types of violence have severely damaged Mexico. In this paper we examine the consequences that violence could have in children, one of the most vulnerable segments of society. In short, we predict that exposure to any type of violence will lead to higher depression and that this could be explained through the effects of violence on childhood well-being. Our hypothesis was supported in two studies, showing that exposure to street violence (Study 1, N = 607) and exposure to collective violence (Study 2, N = 172) can increase childhood depression. Moreover, in both studies, this effect was explained by the decrease of childhood well-being caused by violence exposure. The implications of these results are discussed.  相似文献   
268.
Abstract

Spanish adolescents’ dominant achievement goals and their specific profiles were explored in a physical education context. A sample of 385 students (207 males and 178 females, M = 14.2 years) completed a questionnaire that included 2x2 achievement goals (AGQ-PE), dominant achievement goals, affectivity (PANASN), perfectionism (IPI) and outcome variables such as satisfaction with life (SLS), and intrinsic motivation, extrinsic motivation and amotivation (PLOC). Eighty-seven percent of participants showed dominant achievement goals, the highest percentage was mastery-approach (66%). Patterns found were consistent with the theoretical framework. Students that showed dominant mastery-approach achievement goals had a positively valenced profile. Those that showed performance-approach dominance had a positive and negative valenced profile. The ones that showed performance-avoidance had a negative valenced profile. Finally, subjects that showed mastery-avoidance dominance had a neutral valenced profile.  相似文献   
269.
The purpose here is to explore why and how to develop an emerging form of integral leadership—called evolutionary co-leadership—that is responsibly dedicated to the co-evolution of life and humanity on Planet Earth. After offering some fresh distinctions about leadership, this article calls for a shift to a radically new development paradigm, and identifies key qualities and practices of evolutionary co-leadership. It then shares some views on the multiplying effects of an integral approach to co-leadership development—in the context of transforming education—and concludes with some avenues to disseminate this emerging leadership form, mainly to deal constructively with what Barbara Marx Hubbard (2001) calls the current “birthing pains” of a new civilization.  相似文献   
270.
The history of science must be introduced onto the curriculum, scientific culture must be developed if the young are to receive a global, healthy understanding of science and technology.

The experiment pioneered by INSERM clubs is, from this point of view, exemplary.  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