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   2460篇
  免费   387篇
  2847篇
  2023年   15篇
  2022年   16篇
  2021年   35篇
  2020年   47篇
  2019年   54篇
  2018年   140篇
  2017年   148篇
  2016年   169篇
  2015年   113篇
  2014年   79篇
  2013年   295篇
  2012年   138篇
  2011年   171篇
  2010年   93篇
  2009年   141篇
  2008年   109篇
  2007年   122篇
  2006年   92篇
  2005年   75篇
  2004年   70篇
  2003年   76篇
  2002年   79篇
  2001年   35篇
  2000年   36篇
  1999年   30篇
  1998年   26篇
  1997年   21篇
  1996年   20篇
  1995年   33篇
  1994年   23篇
  1993年   18篇
  1992年   17篇
  1991年   17篇
  1990年   18篇
  1989年   13篇
  1988年   14篇
  1987年   17篇
  1986年   15篇
  1985年   24篇
  1984年   12篇
  1983年   12篇
  1982年   18篇
  1981年   18篇
  1980年   12篇
  1979年   13篇
  1978年   12篇
  1977年   12篇
  1976年   11篇
  1975年   13篇
  1974年   15篇
排序方式: 共有2847条查询结果,搜索用时 15 毫秒
891.
The four-sources model of human abilities posits that individual differences in performance on cognitive tasks are due to differences in working-memory capacity, information-processing speed, the breadth of declarative knowledge, and the breadth of procedural knowledge. To test this model, 310 civilian volunteers were administered a 25-test battery, consisting of verbal, quantitative, and spatial tasks designed to reflect each of the four sources. Confirmatory factor analysis was performed on the variance-covariance matrix of test scores to test the four-sources model and plausible alternatives. The best-fitting model was one that included both the four-sources factors and three content factors. Hierarchical and nonhierarchical models fit about equally well. From additional data on the Armed Services Vocational Aptitude Battery, latent-factor correlations suggested that working-memory capacity overlapped considerably with psychometric general ability (r = .99) and breadth of declarative knowledge overlapped with psychometric verbal ability (r = .97), but information-processing speed was distinct from psychometric perceptual speed (r = .16).  相似文献   
892.
Children's affective experiences and cognitive abilities have an impact on emotion understanding. However, their relative contribution, as well as the possibility of an interaction between them, has rarely been examined. The aim of the present study was to evaluate the influence of severe abuse and learning difficulties on simple and complex components of emotion understanding in late childhood and early adolescence. A total of 28 older children and young adolescents were selected for the study. Half of the participants had suffered from severe abuse, and half of these abused children additionally had learning disabilities. The remaining half of the sample had no history of abuse but were matched with the abused children on learning difficulties, age and gender. The participants’ emotion understanding was assessed with the Test of Emotion Comprehension (TEC). Results showed that (a) learning difficulties but not abuse had an impact on emotion understanding, (b) there was no interaction effect of abuse and learning difficulties on emotion understanding, and (b) the observed effects of learning difficulties were most apparent for the understanding of relatively complex components of emotion and not for simple components. The results are discussed in terms of their theoretical and practical implications.  相似文献   
893.
The present study assessed the utility of the Torque Test (Blau, 1977b) as a predictor of reading performance. Children (N = 149) were administered the Torque Test, the Harris Test of Lateral Dominance (Harris, 1958), the Wide Range Achievement Test, (Jastak & Jastak, 1965), and the Bender Gestalt Test (Koppitz, 1975). Torque scores of disabled and nondisabled readers did not differ significantly, and the correlation between torque and WRAT grade level scores was substantively low. It was concluded that torque is not a useful measure of reading ability.  相似文献   
894.
‘The problem with simulations is that they are doomed to succeed.’ So runs a common criticism of simulations—that they can be used to ‘prove’ anything and are thus of little or no scientific value. While this particular objection represents a minority view, especially among those who work with simulations in a scientific context, it raises a difficult question: what standards should we use to differentiate a simulation that fails from one that succeeds? In this paper we build on a structural analysis of simulation developed in previous work to provide an evaluative account of the variety of ways in which simulations do fail. We expand the structural analysis in terms of the relationship between a simulation and its real-world target emphasizing the important role of aspects intended to correspond and also those specifically intended not to correspond to reality. The result is an outline both of the ways in which simulations can fail and the scientific importance of those various forms of failure.  相似文献   
895.
Patrick Bondy 《Philosophia》2013,41(2):463-475
The purpose of this paper is to raise a new objection to externalist process reliabilism about epistemic justification. The objection is that epistemic justification is intensional—it does not permit the substitution of co-referring expressions—and reliabilism cannot accommodate that.  相似文献   
896.
John McManners, Death and the enlightenment. Changing attitudes to death among Christians and unbelievers in eighteenth-century France, Oxford University Press 1981, vii + 619 pp. £17.50

Richard Swinburne, Faith and reason, Oxford, The Clarendon Press 1981, 206 pp. £16.00

John Coulson, Religion and imagination, Oxford, The Clarendon Press 1981, 193 pp. £12.50

Irving Hexham, The irony of apartheid, the struggle for national independence of Afrikaner calvinism against British imperialism, New York, Edwin Mellen Press 1981, 239 pp

David Tracy, The analogical imagination, London, SCM Press 1981, xii + 467 pp. £12.50

K. D. Sethna Rutherford, The spirituality of the future, a search apropos of R. C. Zaehner's study in Sri Aurobindo and Teilhard de Chardin, Madison, Teaneck: Fairleigh Dickinson University Press; London and Toronto: Associated University Presses 1981. 314 pp. $28.50  相似文献   
897.
Parents seeking help for children with mental health problems are often assigned to a waiting list. We used a discrete choice conjoint experiment to model preferences for interim services that might be used while waiting for the formal assessment and treatment process to begin. A sample of 1,059 parents (92 % mothers) seeking mental health services for 4 to 16 year olds chose between hypothetical interim services composed by experimentally varying combinations of the levels of 13 interim service attributes. Latent Class analysis yielded a four–segment solution. All segments preferred interim options helping them understand how agencies work, enhancing their parenting knowledge and skill, and providing an opportunity to understand or begin dealing with their own difficulties. The Group Contact segment (35.1 %) preferred interim services in meetings with other parents, supported by phone contacts, frequent checkup calls, and wait–time updates. Virtual Contact parents (29.2 %) preferred to meet other parents in small internet chat groups supported by e–mail contact. Membership in this segment was linked to higher education and computer skills. Frequent Contact parents (24.4 %) preferred face–to–face interim services supported by weekly progress checks and wait time updates. Limited Contact parents (11.3 %) were less intent on using interim services. They preferred to pursue interim services alone, with contacts by phone, supported by fewer check–up calls and less frequent wait time updates. All segments were more likely to enroll in interim services involving their child.  相似文献   
898.
Children with ADHD symptoms often display social competence deficits, yet mechanisms for their social difficulties remain unclear. Using data from the normative sample of non-intervention respondents (N?=?387; 50 % male; 49 % non-European-American; age at initial assessment: M?=?6.5 years, SD?=?0.48) in the Fast Track project (Lochman and CPPRG Journal of Consulting and Clinical Psychology 63:549–59, 1995), the social-information processing ability of accessing responses for social situations was modeled across four time points from kindergarten to third grade. Teacher-rated aggression and ADHD symptoms were included as predictors of the intercept and slope. Low ADHD symptoms were associated with a decline in aggressive responses across childhood, whereas high ADHD symptoms were linked to an increase in aggressive responses that decelerated between second and third grade. Regarding competent responses, low ADHD symptoms predicted increases in competent responses, but this increase decelerated between second and third grade. High ADHD symptoms were also associated with a slight increase in competent responses into first grade, but competent responses decreased from first to third grade. Neither aggression nor the interaction of ADHD symptoms and aggression accounted for a significant amount of variance in aggressive or competent responses. Future research should identify if differences in response access associated with high and low ADHD symptoms link to difficulties making and keeping friendships.  相似文献   
899.
Charismatic presidents like John F. Kennedy, Ronald Reagan, and now Barack Obama have been able to overcome stereotype‐based barriers to political power by connecting emotionally with viewers, particularly through their nonverbal skills. In this study we focus on the facial displays of emotion by President Obama and how participants interpret them. This study builds upon the pioneering research of the Dartmouth Group concerning response to displays of happiness‐reassurance by political leaders. It will first replicate and extend upon existing research by using Ekman and Friesen's Facial Action Coding System (FACS) to characterize facial displays by President Obama, specifically three neutral displays and three different types of smiles. Second, this study replicates research carried out over two decades ago concerning individual differences in sex, ethnicity, and age cohort on response to political candidates culturally defined as Black. Video focusing on the head and torso were FACS coded and presented in a web‐based experiment to 79 participants working at a southern institution of higher education. The participants identified the emotions felt by President Obama on a scale ranging from “not at all” to “extremely” focusing on the basic emotion terms of: “Happy” and “Playful” (happiness‐reassurance) and “Angry” and “Disgusted” (anger‐threat). Findings suggest participants differentiate between subtle facial‐display differences and that there are differences based upon ethnicity and support for President Obama when they interpret his facial displays of emotion.  相似文献   
900.
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