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   27571篇
  免费   960篇
  国内免费   12篇
  2019年   281篇
  2018年   406篇
  2017年   447篇
  2016年   449篇
  2015年   304篇
  2014年   408篇
  2013年   2191篇
  2012年   737篇
  2011年   830篇
  2010年   513篇
  2009年   506篇
  2008年   694篇
  2007年   712篇
  2006年   629篇
  2005年   582篇
  2004年   579篇
  2003年   543篇
  2002年   623篇
  2001年   799篇
  2000年   807篇
  1999年   616篇
  1998年   342篇
  1997年   316篇
  1993年   294篇
  1992年   540篇
  1991年   474篇
  1990年   503篇
  1989年   484篇
  1988年   458篇
  1987年   467篇
  1986年   465篇
  1985年   477篇
  1984年   411篇
  1983年   375篇
  1982年   325篇
  1981年   287篇
  1979年   460篇
  1978年   374篇
  1977年   344篇
  1976年   302篇
  1975年   435篇
  1974年   450篇
  1973年   410篇
  1972年   377篇
  1971年   335篇
  1970年   305篇
  1969年   347篇
  1968年   387篇
  1967年   348篇
  1966年   354篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
961.
In a comparison of religious and nonreligious psychotherapists' perceptions of a portion of a psychotherapeutic session no significant differences were found on the Vanderbilt Psychotherapy Process Scale for four groups of therapists designated according to their scores on three religious questionnaires. While the results suggest attitudes toward religion are not reflected in therapists' practice of psychotherapy, limitations of the study indicate the need for more rigorous testing of this possibility.  相似文献   
962.
Markov chains are probabilistic models for sequences of categorical events, with applications throughout scientific psychology. This paper provides a method for anlayzing data consisting of event sequences and covariate observations. It is assumed that each sequence is a Markov process characterized by a distinct transition probability matrix. The objective is to use the covariate data to explain differences between individuals in the transition probability matrices characterizing their sequential data. The elements of the transition probability matrices are written as functions of a vector of latent variables, with variation in the latent variables explained through a multivariate regression on the covariates. The regression is estimated using the EM algorithm, and requires the numerical calculation of a multivariate integral. An example using simulated cognitive developmental data is presented, which shows that the estimation of individual variation in the parameters of a probability model may have substantial theoretical importance, even when individual differences are not the focus of the investigator's concerns.Research contributing to this article was supported by B.R.S. Subgrant 5-35345 from the University of Virginia. I thank the DADA Group, Bill Fabricius, Don Hartmann, William Griffin, Jack McArdle, Ivo Molenaar, Ronald Schoenberg, Simon Tavaré, and several anonymous reviewers for their discussion of these points.  相似文献   
963.
The Priestley duality for Wajsberg algebras   总被引:1,自引:1,他引:0  
The Priestley duality for Wajsberg algebras is developed. The Wajsberg space is a De Morgan space endowed with a family of functions that are obtained in rather natural way.As a first application of this duality, a theorem about unicity of the structure is given.  相似文献   
964.
965.
Conclusion The legacy of the Swampscott conference 25 years ago is palpable. The scientific accomplishments have been substantial. The four agendas I have presented for the future development of the field depend upon psychologists as individuals and psychologists as participants in our departments, colleges, universities, professional societies, and peer review panels to reduce the constraints that limit the definition and study of psychological phenomena in community settings (Schneider, 1990). As these constraints are addressed, new social norms can be established to expand and diversify the research process. There are some explicit positive side effects that can occur. A new working social structure can be created for how universities and communities can be resources for each other.The four topics I have presented are agendas for keeping at the task of generating active and expanding scientific traditions. These topics when addressed in the context of collaboration with other disciplines and citizens can develop an empirical base of shared wisdom about how to carry out community psychology research. In these ways the benefits of community psychology research can become more empowering for the public and more and more systemic for the scholar.These comments were presented as an Invited Address at the 2nd annual meeting of the American Psychological Society, June 8, 1990, Dallas, Texas.The following persons took time to read and comment on earlier drafts of these comments. I have benefited very much from their appraisals. Eileen Altman, Daniel Cervone, Seeley Chandler-Kelly, Nancy Dassoff, Penny Foster-Fishman, Steve Goldston, Peter Graves, Kenneth Heller, Robert E. Hess, David Henry, Ira Iscoe, Chris Keys, Benjamin Kleinmuntz, Ed Lichtenstein, Philip Mann, Kyoung Oh, Julian Rappaport, Dan Romer, Lonnie R. Snowden, Joseph P. Stokes, Edison J. Trickett, Abe Wandersman, and Marc Alan Zimmerman.  相似文献   
966.
This study presents initial standardization data on the Sutter- Eyberg Student Behavior Inventory (SESBI), a teacher- completed measure of disruptive classroom behaviors. SESBIs were completed on 1116 children in kindergarten through fifth grade in a rural eastern Washington school district. Various analyses (Cronbach's alpha, corrected item- total correlations, average interitem correlations, principal components analyses) indicated that the SESBI provides a homogeneous measure of disruptive behaviors. Support was also found for three factors within the scale (e.g., overt aggression, oppositional behavior, and attentional difficulties). While the child's age did not have a significant effect on the SESBI, the child's gender did have a significant effect on scale scores as well as on most of the items, with males being rated more problematic than females. The SESBI was also able to discriminate between children in treatment for behavioral problems or learning disabilities and children not in treatment.The authors would like to acknowledge the support of the teachers in the Pullman School District, whose kind help and assistance made the study possible. Special thanks are also extended to Todd Sosna, Christine Ladish, and Lee Sternberger for their helpful comments on earlier versions of the paper. Preparation of this study was supported in part by funds provided to G. Leonard Burns by Washington State University.  相似文献   
967.
Ascertained if being a member of a statistical minority influences children's adjustment in school, as measured by the AML, a teacher-administered adjustment rating scale. Teachers from a southwest school district evaluated elementary students on aggressive, acting-out behaviors, moody-internalized behaviors, and learning difficulties. Analyses conducted on 376 students revealed significant effects of statistical minority status on certain dimensions of adjustment ratings for both Hispanic and Anglo students. Hispanic students in the statistical minority received poorer ratings on the moodiness dimension of the AML than nonminority Hispanic students. Anglo students in the statistical minority received poorer ratings on the aggression dimension of the AML than nonminority Anglo students. These results were interpreted in terms of cultural differences in coping with statistical minority status. Traits commonly exhibited within a culture may intensify and be perceived as maladaptive when stress resulting from being a minority occurs. Implications of the finding that statistical minority status within the school environment influences adjustment are discussed.  相似文献   
968.
A componential analysis of pacemaker-counter timing systems   总被引:1,自引:0,他引:1  
Why does counting improve the accuracy of temporal judgments? Killeen and Weiss (1987) provided a formal answer to this question, and this article provides tests of their analysis. In Experiments 1 and 2, subjects responded on a telegraph key as they reproduced different intervals. Individual response rates remained constant for different target times, as predicted. The variance of reproductions was recovered from the weighted sum of the first and second moments of the component timing and counting processes. Variance in timing long intervals was mainly due to counting error, as predicted. In Experiments 3-5, unconstrained response rate was measured and subjects responded at (a) their unconstrained rate, (b) faster, or (c) slower. When subjects responded at the preferred rate, the accuracy of time judgment improved. Deviations in rates tended to increase the variability of temporal estimates. Implications for pacemaker-counter models of timing are discussed.  相似文献   
969.
The purpose of this comment is to point out some potential pitfalls in the study of similarity judgments, particularly with regard to comparison of similarity judgments between modalities. These are discussed in the context of the article by Ritov, Gati, and Tversky (1990).  相似文献   
970.
Wistar rats learned to withhold consumption of a target solution when morphine preceded presentation of the target solution and lithium chloride (LiCl) and to consume the same target solution when saline preceded the presentation of the solution. After this serial feature discrimination training, morphine did not block the formation of a Pavlovian association between saccharin and LiCl but did suppress consumption of familiar tap water. After Pavlovian conditioning, morphine blocked the formation of an association between saccharin and LiCl but did not suppress consumption of a familiar tap water solution. The roles of morphine and saline can be interchanged. It appears that the morphine discriminative stimulus is calling up a representation of neither the conditioned stimulus nor the unconditional stimulus alone, but rather a modified representation of some aspect of their association.  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