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   1625篇
  免费   185篇
  国内免费   257篇
  2067篇
  2024年   5篇
  2023年   45篇
  2022年   35篇
  2021年   72篇
  2020年   106篇
  2019年   98篇
  2018年   72篇
  2017年   98篇
  2016年   94篇
  2015年   66篇
  2014年   88篇
  2013年   241篇
  2012年   49篇
  2011年   53篇
  2010年   61篇
  2009年   62篇
  2008年   69篇
  2007年   74篇
  2006年   79篇
  2005年   83篇
  2004年   74篇
  2003年   45篇
  2002年   62篇
  2001年   38篇
  2000年   31篇
  1999年   27篇
  1998年   29篇
  1997年   24篇
  1996年   22篇
  1995年   18篇
  1994年   16篇
  1993年   12篇
  1992年   8篇
  1991年   12篇
  1990年   6篇
  1989年   10篇
  1988年   7篇
  1987年   6篇
  1986年   6篇
  1985年   10篇
  1984年   9篇
  1983年   3篇
  1981年   2篇
  1980年   2篇
  1979年   3篇
  1978年   12篇
  1977年   12篇
  1976年   6篇
  1975年   3篇
  1973年   1篇
排序方式: 共有2067条查询结果,搜索用时 15 毫秒
911.
The COVID-19 pandemic may have been a difficult time to join a new organization. Drawing on the feelings-as-information theory, this study explores how COVID-19 lockdown anxiety influenced newcomers' job satisfaction during their first few months of work. We tested 357 new employees working in 84 cities across China. We conducted a longitudinal study, and participants were invited to complete the same survey at two time points. Cross-lagged panel analysis was conducted to test our hypotheses. We confirmed that COVID-19 lockdown anxiety at Time 1 predicted less job satisfaction at Time 2, whereas the data did not support the idea of reverse causality. These findings suggest public health crises like the pandemic can impact newcomers' job satisfaction, especially during China's Zero-Covid Policy.  相似文献   
912.
Recent curriculum reform in western educational systems has seen a major emphasis on electronic technology, but reform literature seldom problematises the form that this new education should take in this new mode of information. From the particular case of New Zealand it is argued that knowledge has been replaced by information, knowing that (something is the case) by knowing how (acquiring skills), while electronic writing tends to be treated as a mere extension of print literacy. However, the information economy is a major force restructuring not only the curriculum but, also, our social and cultural relations, established notions of knowledge, authority, and rights, and our notions of subjectivity. The purpose of this paper is to problematise this move to information in the new electronic technologies.  相似文献   
913.
Although its central role in human-computer interaction is recognized by industry, the user interface (UI) has received scant attention in the computer-based testing (CBT) literature. Industrial and European Community ergonomic directives have been established regarding UI design issues, however, which may significantly impact upon CBT. Accordingly, the UI’s CBT role is discussed regarding central CBT/UI constructs and dynamics. On the basis of one CBT UI design issue (here: paging) it is shown that many ergonomic regulatory definitional traps exist for the unwary CBT practitioner and UI designer. Newer UI developments in windowing technology and computer-based UI ergonomic regulation conformance analysis are described. Finally, open issues regarding CBT UI problematics are discussed, showing that, rather than continuing to lead a shadowed existence, the UI is deserving of considerably increased research effort regarding its CBT impact.  相似文献   
914.
Reading interventions were applied in a brief multielement format to examine their effectiveness at improving the oral reading fluency of three students referred for reading problems. Although each student had different profiles across experimental analyses, effective interventions were identified and a mini-replication confirmed the pattern of results in each case.  相似文献   
915.
The majority of adolescent smokers are able to purchase cigarettes even though laws prohibit the sale of cigarettes to minors (Radecki & Zdunich, 1993). The present study focused on merchant licensing, civil penalties, and monitoring of merchant behavior. Several different schedules of enforcement in the city of Chicago were evaluated to determine the optimal schedules to reduce the sale of cigarettes to minors in a major metropolitan area. Schedules of 2, 4, and 6 months were effective in reducing illegal sales, from 86% to 19%, 87% to 34%, and 87% to 42%, respectively. In a control condition, illegal sales remained high (approximately 84%). Cigarette control laws that regularly enforce civil penalties for tobacco sales violations can successfully reduce minors' access to cigarettes.  相似文献   
916.
Some historical background and preliminary technical information are first presented, and then a number of hidden, but important, methodological aspects of dual scaling are illustrated and discussed: normed versus projected weights, the amount of information accounted for by each solution, a perfect solution to the problem of multidimensional unfolding, multidimensional quantification space, graphical display, number-of-option problems, option standardization versus item standardization, and asymmetry of symmetric (dual) scaling. Contrary to the common perception that dual scaling and similar quantification methods are now mathematically transparent, the present study demonstrates how much more needs to be clarified for routine use of the method to arrive at valid conclusions. Data analysis must be carried out in such a way that common sense, intuition and sound logic will prevail.Presidential Address delivered at the Annual Meeting of the Psychometric Society, Banff Centre for Conferences, Banff, Alberta, Canada, June 27–30, 1996. The work has been supported in part by a grant from the Natural Sciences and Engineering Research Council of Canada. I am grateful to Ira Nishisato for his comments, Ingram Olkin and Yoshio Takane for important references, and Liqun Xu for computational help.  相似文献   
917.
Chang and Stout (1993) presented a derivation of the asymptotic posterior normality of the latent trait given examinee responses under nonrestrictive nonparametric assumptions for dichotomous IRT models. This paper presents an extention of their results to polytomous IRT models in a fairly straightforward manner. In addition, a global information function is defined, and the relationship between the global information function and the currently used information functions is discussed. An information index that combines both the global and local information is proposed for adaptive testing applications.This research was partially supported by Educational Testing Service Allocation Project No. 79424. The author wishes to thank Charles Davis, Xuming He, Frank Jenkins, Spence Swinton, William Stout, Ming-Mai Wang, and Zhiliang Ying for their helpful comments and discussions. The author particularly wishes to thank the Editor, Shizuhiko Nishisato, the Associate Editor, and three anonymous reviewers for their thoroughness and thoughtful suggestions.  相似文献   
918.
Mark Reiser 《Psychometrika》1996,61(3):509-528
Using the item response model as developed on the multinomial distribution, asymptotic variances are obtained for residuals associated with response patterns and first-, and second-order marginal frequencies of manifest variables. When the model does not fit well, an examination of these residuals may reveal the source of the poor fit. Finally, a limited-information test of fit for the model is developed by using residuals defined for the first-, and second-order marginals. Model evaluation based on residuals for these marginals is particularly useful when the response pattern frequencies are sparse.The author would like to thank Yasuo Amemiya and Joseph Lucke for helpful suggestions. This research was supported by a Research Incentive Grant from Arizona State University.  相似文献   
919.
Abstract. The design argument for God's existence was critically assessed when in the growth of modern science the cognitive value of ideological categories was called into question. In recent discussions dealing with anthropic principles there has appeared a new version of the design argument, in which cosmic design is described without the use of ideological terms. The weak anthropic principle (WAP), a most critical version of all these principles, describes the fine-tuning of physical parameters necessary lo the genesis of carbon-based life. It defines no physical mechanisms of the observed coordination between physical parameters. If in a future unified physical theory such mechanisms are discovered, the weak anthropic principle should be replaced by the strong anthropic principle, which asserts the physical necessity of fine-tuning. Neither of the versions can be regarded as physically trivial unless one accepts strong assumptions of the existence of parallel universes. Consequently, a new version of the philosophical design argument can be developed on the basis of the weak anthropic principle.  相似文献   
920.
Past research suggests that people may make use of diagnosticity information when explicit data regarding P(D | H) and P(D | ? H) are given to them. However, people fall victim to pseudodiagnosticity biases and ignore P(D | ? H) when such data must be actively sought. This series of four experiments utilized judgment problems in which subjects have knowledge of P(D | ? H) but must recognize the relevance of that knowledge for the judgment at hand. It was hypothesized that subjects who genuinely understood the role of P(D | ? H) in hypothesis testing would respond to this manipulation of implicit diagnosticity by exhibiting greater confidence and lesser information buying when given evidence of relatively high diagnosticity. In the first three studies, subjects attempted to judge the guilt or innocence of suspects in several fictional crimes. In the fourth experiment, subjects attempted to judge the club membership status of students at their own university. Greater amounts of information were bought when the only available information was of low diagnosticity. Subjects also expressed greater confidence in judgments made using highly diagnostic information. However, within the legal scenario, sensitivity to diagnosticity was dependent upon the implication of the cues received. Results are discussed with respect to Bayesian probability, expected value theory, and a confidence criterion model of information purchasing.  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