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   1326篇
  免费   35篇
  国内免费   1篇
  1362篇
  2020年   13篇
  2018年   19篇
  2017年   15篇
  2016年   20篇
  2015年   14篇
  2014年   22篇
  2013年   193篇
  2012年   28篇
  2011年   33篇
  2010年   23篇
  2009年   34篇
  2008年   43篇
  2007年   53篇
  2006年   41篇
  2005年   46篇
  2004年   46篇
  2003年   39篇
  2002年   36篇
  2001年   25篇
  2000年   24篇
  1999年   21篇
  1998年   24篇
  1997年   21篇
  1996年   18篇
  1995年   17篇
  1994年   15篇
  1993年   14篇
  1992年   29篇
  1991年   21篇
  1990年   13篇
  1989年   12篇
  1987年   18篇
  1986年   10篇
  1985年   11篇
  1984年   16篇
  1983年   17篇
  1982年   25篇
  1981年   26篇
  1980年   13篇
  1979年   18篇
  1978年   15篇
  1977年   13篇
  1976年   11篇
  1975年   15篇
  1974年   19篇
  1973年   20篇
  1972年   13篇
  1971年   14篇
  1970年   14篇
  1969年   13篇
排序方式: 共有1362条查询结果,搜索用时 15 毫秒
991.
In the standard serial reaction time (SRT) experiment, subjects are required to respond rapidly to a structured sequence of visual targets. Evidence that subjects have acquired knowledge of the structure is obtained by modifying the structured nature of the sequence and noting whether reaction times increase. In the dual-task SRT experiment, a “secondary” tone-counting task is introduced, and the extent to which learning of the “primary” target sequence is compromised is noted. Here we present data that strongly imply that while the psychologists who designed this “dual-task” experiment may have viewed it this way, this may not be the best way to characterize it. The suggestion is that this “duality” is illusory and that we should probably be treating the tone-counting task as a potential source of additional patterns of covariation in a complex, multicomponent display and not as a “secondary,” attention-diverting factor.  相似文献   
992.
Examples of tipping suggest that the distinction between tipping, bribery and extortion can be questioned. Some well known ideas about bribery will not work if extended to tipping and, indeed, these analyses may founder whether or not tipping, bribery and extortion merge. I suggest that more case study analysis as well as a discussion of the relationship between character and actions are needed.  相似文献   
993.
994.
995.
Device‐type effects on cognitive tests appear to covary with whether unproctored internet‐based test (UIT) scores were obtained operationally or nonoperationally. The present study examined whether the testing environment and distractions therein—one of three contextual factors identified as plausible explanations—accounts for this covariation. Four‐hundred and twenty‐five college students were randomly assigned to one of three conditions which differed by the testing environment and device used to complete a cognitive test. Test scores did not differ between conditions despite greater distractions reported by those who tested in the distracting environment. Results were replicated within‐study, and suggest that the self‐selection and testing‐stakes hypotheses warrant subsequent empirical examination as explanations for the differences in device‐type effects observed in operational and nonoperational settings.  相似文献   
996.
Scholars have long recognized the impacts of gang membership on adolescents. While some have focused primarily on the negative effects, this seeks to understand the nuanced reasoning and results of joining a gang explicitly on the youth’s perceptions of self-esteem, efficacy, and identity. Using the longitudinal assessment of the Gang Resistance Education and Training (GREAT) program, propensity score matching was conducted on four attitudinal measures to determine whether positive outcomes were seen among adolescents reporting one-time gang involvement. Results indicate a positive effect on self-identity measures. Discussion of these findings illustrates the need for future research and policy implications.  相似文献   
997.
Contemporary understanding of brain functions provides a way to probe into the mystery of creativity. However, the prior evidence regarding the relationship between creativity and brain wave patterns reveals inconsistent conclusions. One possible reason might be that the means of selecting creative individuals in the past has varied in each study. By distinguishing creative potential as open-ended versus closed-ended based on theoretical views, this study examined different brain wave patterns and cortical control abilities in relation to different creative potentials by using electroencephalogram (EEG) biofeedback equipment. The results demonstrated that participants’ performance on the open-ended creative problem was positively related to EEG alpha frequencies, whereas performance on the closed-ended creative problem was related to larger variability in EEG dynamics between alpha and beta waves when performing either open-ended or closed-ended creativity tasks. Further, better control in changing states of brain wave activities according to the EEG biofeedback signals could predict closed-ended creativity performance. Open-ended creativity was related only to the enhancement of alpha signals. These results help clarify previous inconsistent findings, reveal different natures of distinct creativities, and further suggest ways to improve different aspects of creativity with modified biofeedback procedures.  相似文献   
998.
999.
1000.
The employee assistance programme (EAP) is a benefit increasingly provided by UK employers that claims to reduce the effects of 'stress' on individuals and organisations, provide a 'management tool' to improve workplace performance and productivity, and respond to critical incidents. Although the marketing literature describes services as workplace-based counselling, there is evidence to suggest what they actually offer is consultation, assessment, referral and short-term treatment to clients experiencing a wide range of serious psychological and mental health difficulties. This article describes EAPs, their history, development and operation, and reviews the evidence to support their claims for effectiveness. Because employee distress is often the result of an interaction between organisational and individual factors, the role and claims of EAPs as organisational interventions are also critically examined.  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