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   3132篇
  免费   308篇
  2023年   45篇
  2022年   20篇
  2021年   28篇
  2020年   125篇
  2019年   63篇
  2018年   72篇
  2017年   145篇
  2016年   146篇
  2015年   122篇
  2014年   133篇
  2013年   557篇
  2012年   140篇
  2011年   117篇
  2010年   111篇
  2009年   121篇
  2008年   109篇
  2007年   92篇
  2006年   102篇
  2005年   90篇
  2004年   70篇
  2003年   63篇
  2002年   71篇
  2001年   31篇
  2000年   36篇
  1999年   39篇
  1998年   40篇
  1997年   29篇
  1996年   61篇
  1995年   41篇
  1994年   33篇
  1993年   40篇
  1992年   53篇
  1991年   49篇
  1990年   40篇
  1989年   34篇
  1988年   26篇
  1987年   26篇
  1986年   24篇
  1985年   23篇
  1984年   20篇
  1983年   18篇
  1982年   29篇
  1981年   29篇
  1980年   25篇
  1979年   27篇
  1978年   29篇
  1977年   29篇
  1976年   14篇
  1975年   9篇
  1973年   10篇
排序方式: 共有3440条查询结果,搜索用时 15 毫秒
121.
Adoption of a child is an event in which a number of crises have converged. Both the biologic and adoptive families have contributed their failures and crises, and the subsequent interpretations of these by the adopted child can lead to polarized themes of goodness and badness. The absence of the biologic parents and of a coherent history reinforces the tendency to splitting. This paper explores these operations and raises questions about prevailing adoption practices.Paper presented at Spence-Chapin Symposium on Identity Problems of Children in Non-Nuclear Families, April 11, 1981.  相似文献   
122.
This study evaluated the effectiveness of the Primary Mental Project (PMHP), a program for early detection and prevention of school adjustment problems. Pre- and postprogram assessments were done with 215 primary-grade children seen in PMHP, usig teacher ratings of problem behaviors and competencies, and child-aide ratings of problems. School mental health professionals judged educational and behavioral changes in project children during the year. Significant across-the board improvements were found on all criterion measures. Modest intercorrelations among criterion change estimates suggested that the observed changes were due to program, rather than halo, effects. PMHP children also improved significantly more than matched, retrospective controls.  相似文献   
123.
This experiment examined the role of cognitive flexibility-rigidity in memory. On the basis of several personality tests, subjects were classified as flexible, intermediate, or rigid, using a postexperimental blocking procedure. All subjects were given a perceptual grouping task, which masks the meaningful structure of the material. Subjects have the option of discovering the more meaningful structure consisting of word pairs, or alternatively, processing less meaningful chunks of letters. Results were that flexible subjects recalled substantially more items than intermediate and rigid subjects, in that order. In addition, subjects given different (varied) groupings of the letter chunks recalled substantially more than subjects given repeated presentations of the same grouping structure. Transfer tests indicated that subjects acquired different coding strategies under varied and constant input. Repetitious input led subjects to adopt inefficient strategies in processing the material to be remembered, whereas varied input led subjects to adopt efficient encoding strategies.  相似文献   
124.
Rape—Relationships and Recovery is a group counseling model designed to intercede when crisis-oriented rape counseling ends. Major aspects of the model include (a) giving factual information and dispelling common myths surrounding rape; (b) recognizing and working through the grief process following rape; and (c) aiding the expression of the intrapersonal and interpersonal feelings that result from rape.  相似文献   
125.
A microprocessor system can be used both to control aversive conditioning (classical, signaled and Sidman avoidance, and conflict) experiments and to acquire behavioral data in multiple subjects at a fraction of the cost of solid state systems. The software described in this paper can be used to program tones and shocks and count responses, independently, in up to 12 animals simultaneously.  相似文献   
126.
127.
The dichotomies verbal/visuospatial, serial/parallel and analytic/holistic are reviewed with respect to differences in hemispheric processing. A number of experimental parameters may be varied in such tasks, and together with certain frequently-occurring weaknesses of experimental design may account for the often discrepant results hitherto reported. The above factors are systematically reviewed, and three further experiments are reported which attempt to fill in the missing designs. Further evidence is given in support of the hypothesis that right-hemisphere superiority is most apparent in processes leading to identity matching. It is quantitative rather than qualitative, and may depend upon operations on the entire gestalt, such as holistic matching, mental rotation, reflection, distortion, etc., rather than, e.g., simultaneous (parallel) processing of discretely analysed or isolated features or elements. On the other hand left-hemisphere involvement in visuospatial processing is thought to reflect analysis of the configuration into its separable components; such processing may be either serial or parallel, and may frequently lead to a judgement different.  相似文献   
128.
Schoolchildren, aged 16 years showed poorer incidental learning for nouns if the orienting task was one of finding rhymes for the items compared to assigning each word to a semantic category. On a recognition task including homophone and synonym foils, rhyming subjects made significantly more phonemic errors, whereas categorizing subjects produced a significantly greater number of semantic confusions. Subjects instructed to construct images for each of the nouns showed a performance pattern similar to the categorizing group. The results are interpreted in terms of Herriot's (1974) view that different levels of processing are associated with the coding of different clusters of stimulus attributes.  相似文献   
129.
130.
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