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   764篇
  免费   35篇
  2024年   3篇
  2023年   8篇
  2022年   7篇
  2021年   12篇
  2020年   18篇
  2019年   22篇
  2018年   24篇
  2017年   21篇
  2016年   28篇
  2015年   24篇
  2014年   24篇
  2013年   89篇
  2012年   35篇
  2011年   39篇
  2010年   20篇
  2009年   26篇
  2008年   29篇
  2007年   33篇
  2006年   31篇
  2005年   33篇
  2004年   36篇
  2003年   24篇
  2002年   17篇
  2001年   15篇
  2000年   12篇
  1999年   10篇
  1998年   18篇
  1997年   16篇
  1996年   8篇
  1995年   14篇
  1994年   14篇
  1993年   7篇
  1992年   3篇
  1991年   4篇
  1990年   9篇
  1989年   5篇
  1987年   5篇
  1986年   7篇
  1985年   5篇
  1984年   3篇
  1982年   7篇
  1980年   3篇
  1979年   3篇
  1975年   2篇
  1974年   3篇
  1972年   3篇
  1971年   2篇
  1969年   3篇
  1967年   2篇
  1966年   2篇
排序方式: 共有799条查询结果,搜索用时 15 毫秒
31.
The purpose of this paper is to examine the effectiveness of Reconnecting Youth, a prevention program for at-risk high school youth. Data are from a large, independently evaluated effectiveness trial in two diverse urban school districts. A total of 1,218 students participated; 50% were male; average age was 15. We tested whether positive efficacy trial effects could be replicated, and whether any negative behavioral effects occur when clustering high-risk youth. Although mixed program effects were observed at immediate post-intervention, only negative effects were found at 6-month follow-up. These effects included less optimal scores on measures of GPA, Anger, School Connectedness, Conventional Peer Bonding, and Peer High-Risk Behaviors. Overall, we found little support for the use of this social-influence—model intervention aimed at increasing school connectedness for high-risk youth. Further, this study provides evidence that clustering high-risk youth in preventive interventions has the potential for iatrogenic effects.  相似文献   
32.
A theory is proposed that life events are remembered with a satisfying sense of closure when there is decreased emotional detail in the constructed autobiographical memory representation. The first three studies show that, although properties of the experienced event (such as valence and recency) accounted for some variance in participants' sense of closure, the amount of emotional detail in the memory was also a significant predictor. The third study shows that emotion-focused biased retelling of the experience increased emotional detail and decreased the sense of closure participants reported. Related approaches and implications for psychological adjustment are discussed.  相似文献   
33.
This article reports findings from an in-depth case study investigating processes of teaching and learning within one tutorial group studying an e-learning course presented as part of the Open University's MA in Open and Distance Education. Drawing on contemporary sociocultural theory and research, the instructional techniques used by the tutor-moderator to guide the creation of "common knowledge" and the construction of understanding are explored. The significance of tutor contributions for fostering a supportive culture of enquiry is also discussed.  相似文献   
34.
The experiment was setup to examine the coordination changes in assembling the movement form of 3-ball cascade juggling. Eight adult participants learned to juggle over 4 weeks of practice. Juggling scores were recorded at each session and performance was videotaped at eight selected sessions for purposes of movement analysis. Once the basic spatial and temporal constraints on cascade juggling were satisfied, and the figure-8 juggling mode was established, temporal modulations of the relative motions of the hands were emphasized. All participants learned to juggle and the increase over practice in the number of consecutive balls caught was best fit with a power law. The non-proportional rate of performance increment was consistent with the qualitative changes in the form of the hand and ball movement kinematics that occurred over practice.  相似文献   
35.
Event-related potential (ERP) studies have demonstrated impaired auditory sensory processing in patients with schizophrenia, as reflected in abnormal mismatch negativity (MMN). We sought to extend this finding by evaluating MMN in 13 treatment-refractory patients with schizophrenia, and 14 age- and gender-matched healthy controls. Subjects responded to infrequent visual stimulation while ignoring binaurally presented auditory tones. The amplitude and topographical pattern of the MMN were analyzed. The control group presented the expected reduction in the amplitude of the MMN from frontal to central and parietal locations. In comparison, the MMN amplitude was not reduced in the treatment-refractory patients, and was largest at the central-posterior electrode location. In addition, patients displayed larger negativities at left frontal, and left- and right-temporal electrode locations than the control subjects. These findings are consistent with pre-attentive abnormalities in treatment-refractory patients with schizophrenia.  相似文献   
36.
37.
This study examined the possibility that lack of behavioral evidence indicating hemispheric specialization for selective attention in healthy individuals is due to the use of tasks that are not sufficiently demanding to require selective attention. In a group of 43 participants (ages 17-23), we compared selective attention on a cued-response time task when the target was presented alone and when a distractor was simultaneously presented. The costs of invalid cueing were minimal when the right hemisphere (RH) processed the target relative to when the left hemisphere (LH) processed the target, but only for the high load condition. These results are interpreted as RH specialization in light of evidence suggesting that the RH can direct attention to a larger portion of the visual field.  相似文献   
38.
Although the feminist critique of marriage and family therapy has been a significant part of the literature for many years, its impact has been blunted by two criticisms. The first suggests that the feminist critique lacks empirical support. The second suggests that the feminist critique promotes an alliance with women clients at the expense of men. The first criticism has been addressed in recent years. The present study examined the relationship between feminist principles and therapeutic alliance. Results suggest that feminist principles actually enhance therapeutic relationship for men clients but has no effect on therapeutic relationship for women clients.of the Marriage and Family Therapy Program  相似文献   
39.
40.
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