全文获取类型
收费全文 | 45494篇 |
免费 | 1619篇 |
国内免费 | 26篇 |
专业分类
47139篇 |
出版年
2020年 | 413篇 |
2019年 | 494篇 |
2018年 | 2017篇 |
2017年 | 1904篇 |
2016年 | 1603篇 |
2015年 | 614篇 |
2014年 | 641篇 |
2013年 | 3003篇 |
2012年 | 1387篇 |
2011年 | 2218篇 |
2010年 | 1740篇 |
2009年 | 1241篇 |
2008年 | 1656篇 |
2007年 | 1940篇 |
2006年 | 840篇 |
2005年 | 845篇 |
2004年 | 797篇 |
2003年 | 742篇 |
2002年 | 766篇 |
2001年 | 1376篇 |
2000年 | 1349篇 |
1999年 | 960篇 |
1998年 | 388篇 |
1997年 | 361篇 |
1996年 | 351篇 |
1992年 | 772篇 |
1991年 | 719篇 |
1990年 | 748篇 |
1989年 | 702篇 |
1988年 | 686篇 |
1987年 | 626篇 |
1986年 | 669篇 |
1985年 | 654篇 |
1984年 | 515篇 |
1983年 | 460篇 |
1981年 | 330篇 |
1979年 | 529篇 |
1978年 | 401篇 |
1977年 | 337篇 |
1976年 | 324篇 |
1975年 | 452篇 |
1974年 | 573篇 |
1973年 | 548篇 |
1972年 | 477篇 |
1971年 | 429篇 |
1970年 | 419篇 |
1969年 | 431篇 |
1968年 | 536篇 |
1967年 | 454篇 |
1966年 | 457篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
The present experiments examine how irrelevant variations within a stimulus set interfere with performance in a selective attention task. Second graders, fifth graders, and adults were administered a discrete trial version of a selective attention task in which they were required to search for an object that matched the prime on the targeted dimension. The stimuli in the first experiment were constructed from spatially integrated dimensions whereas the second experiment used spatially separated dimensions. The results indicated that while the spatially separated dimensions were perceived independently by all age groups, developmental differences in perceived structure were evident with the spatially integrated dimensions. Problems associated with response selection were a major source of interference with both types of stimuli, but the severity of the interference varied with the age of the perceiver and the nature of the stimuli. The developmental implications of these findings were considered. 相似文献
92.
93.
Although peers' and teachers' evaluations of children's prosocial behavior and peers' sociometric ratings frequently have been used in studies of social development, the validity of young children's ratings of others has been questioned, as has that for teachers' ratings of prosocial behavior. In this study, preschoolers' ratings of peers' sociometric status and prosocial behavior, as well as teachers' ratings of children's prosocial dispositions, were obtained. These were correlated with children's naturally occurring prosocial or social behavior; ratings of prosocial behavior also were correlated with children's prosocial moral reasoning and prosocial self-attributions. Peers' sociometric ratings were positively related to children's sociability whereas prosocial ratings were related to helping (but not sharing) behavior. Teachers' ratings of prosocial behavior were not related to frequency of prosocial behaviors, but were positively related to developmentally mature moral judgments and self-reported motives. 相似文献
94.
Training in systemic therapy necessitates a structured approach to teaching systemic thinking. The Systemic Therapy Sessions Summary Form, a record-keeping method, is presented as a tool for enhancing training in systemic therapy. The purpose of this form is to provide the structure for the trainee to develop circular hypotheses, to connect reflexively the assessment and intervention components of therapy, and to maintain a sense of the evolving nature of therapy across sessions. A case example illustrates the use of this record-keeping format. 相似文献
95.
Sabir A. Alvi Sar B. Khan M. Anwar Hussain Tahira BAIG 《International journal of psychology》1988,23(1-6):449-459
This paper combines the results of two studies across different cultures which included an investigation into the relationship between field-dependence-independence and vocational orientations within the framework of Holland's theory of career choice and Witkin's theory of psychological differentiation. The samples included 179 Canadian senior high school students and 376 Pakistani college and university students. Both samples were administered Self-Directed Search and Group Embedded Figures Test. The results indicated a significant relationship between cognitive styles and vocational orientations. It was evident from the findings of these two studies that the theories of Holland and Witkin dove-tail nicely with each other. 相似文献
96.
97.
Depressed affect and time perception 总被引:1,自引:0,他引:1
98.
99.
100.