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   186420篇
  免费   8357篇
  国内免费   155篇
  2020年   2783篇
  2019年   3456篇
  2018年   3670篇
  2017年   4116篇
  2016年   4710篇
  2015年   3942篇
  2014年   4811篇
  2013年   23454篇
  2012年   4979篇
  2011年   4286篇
  2010年   4091篇
  2009年   4855篇
  2008年   4412篇
  2007年   4040篇
  2006年   4488篇
  2005年   4390篇
  2004年   3868篇
  2003年   3468篇
  2002年   3327篇
  2001年   4040篇
  2000年   3910篇
  1999年   3654篇
  1998年   2890篇
  1997年   2725篇
  1996年   2406篇
  1995年   2380篇
  1994年   2353篇
  1993年   2331篇
  1992年   2970篇
  1991年   2801篇
  1990年   2668篇
  1989年   2504篇
  1988年   2489篇
  1987年   2458篇
  1986年   2505篇
  1985年   2699篇
  1984年   2687篇
  1983年   2441篇
  1982年   2349篇
  1981年   2344篇
  1980年   2189篇
  1979年   2488篇
  1978年   2295篇
  1977年   2213篇
  1976年   2004篇
  1975年   2210篇
  1974年   2278篇
  1973年   2224篇
  1972年   1803篇
  1971年   1686篇
排序方式: 共有10000条查询结果,搜索用时 218 毫秒
11.
Large health disparities exist between stigmatized and nonstigmatized groups. In addition to experiencing and anticipating greater discrimination, members of stigmatized groups also tend to demonstrate greater ruminative tendencies in response, which may lead to these poor health outcomes. Even among stigmatized groups, differences in the visibility of stigma lead to different mechanisms through which stigma takes its toll. Previous work has primarily focused on the impact of belonging to a single marginalized group; however, people often belong to multiple marginalized groups, and this likely affects both their health outcomes and their anticipation of stigma. In the current study, we focused on individuals with concealable stigmatized identities (CSIs)—socially stigmatized identities that are not immediately apparent to others—and created a measure of concealable marginalization that captures multiple group memberships. We predicted that those possessing a greater number of CSIs would anticipate more stigma from others, and, in turn, ruminate more about the stigma, which would negatively impact the health. Surveying N = 288 adults with CSIs, we found that possessing a greater number of marginalized concealable identities predicted worse self-reported physical quality of life. These relationships were partially mediated by greater anticipated stigma and brooding rumination in regard to their CSI. This work illuminates a more complete picture of how living with CSIs can take its toll on health.  相似文献   
12.
Psychometrika - Methods for the analysis of one-factor randomized groups designs with ordered treatments are well established, but they do not apply in the case of more complex experiments. This...  相似文献   
13.
The following reflections were originally an oral response to issues raised in Lee Yearley's presentation in May 2009 at Harvard Divinity School. As written here, they follow upon his oral and now written comments, highlighting key issues and points for development, drawing on this respondent's expertise in comparative and Hindu studies.  相似文献   
14.
Serial pattern learning was investigated in a variation of the task introduced by Nissen and Bullemer (1987). We presented an asterisk at 1 of 4 spatial locations on each trial, and Ss either responded with a keypress or observed the event. The first 4 blocks contained 10 repetitions of a 10- or 16-element pattern, and the 5th block contained a random sequence. The difference in response time on the 5th random block and the previous patterned block served as an indirect measure of pattern learning. A direct measure was obtained in a final test block in which Ss predicted the next asterisk position. Equivalent learning occurred for responding and observing with indirect measures, but observation was superior with direct measures. These findings indicate that knowledge of serial order can develop through simple perceptual experience, and this is more available to deliberate recall than is knowledge acquired while responding.  相似文献   
15.
16.
17.
This study uses data collected using a 360°-assessment instrument to investigate the structural equivalence of 360°-assessment ratings, according to rater type, controlling for organizational level. Data from 533 managers and their raters were employed in the study, which used multi-group structural equations modeling. Issues central to the implementation and use of 360°-assessment data are also considered within the context of current research and practice.  相似文献   
18.
Previous studies showed that random error can explain overconfidence effects typically observed in the literature. One of these studies concluded that, after accounting for random error effects in the data, there is little support for cognitive‐processing biases in confidence elicitation. In this paper, we investigate more closely the random error explanation for overconfidence. We generated data from four models of confidence and then estimated the magnitude of random error in the data. Our results show that, in addition to the true magnitude of random error specified in the simulations, the error estimates are influenced by important cognitive‐processing biases in the confidence elicitation process. We found that random error in the response process can account for the degree of overconfidence found in calibration studies, even when that overconfidence is actually caused by other factors. Thus, the error models say little about whether cognitive biases are present in the confidence elicitation process. Copyright © 2008 John Wiley & Sons, Ltd.  相似文献   
19.
20.
Cross-culturally measurement invariant instruments are useful for the assessment of mental symptoms across cultures. The current study aimed to investigate the psychometric properties and measurement invariance of the Depression, Anxiety and Stress Scales (DASS-21) (DASS) across Pakistan and Germany. German participants were recruited through an online survey (N = 1323), while Pakistani participants were recruited through online survey or paper-and-pencil survey (N = 1841). The DASS-21 showed good reliability, construct and structure validity in both countries. The DASS-21 indicated partial weak (stress subscale) and partial strong measurement invariance (depression and anxiety subscales) between both countries. Latent mean comparison of depression and anxiety symptoms between Pakistani and German students indicated that Pakistani university students experience more symptoms of depression and anxiety. Results suggest that the DASS-21 could be used in Pakistan and Germany, but caution should be taken when making direct comparisons between the two countries.  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