全文获取类型
收费全文 | 10941篇 |
免费 | 320篇 |
国内免费 | 2篇 |
专业分类
11263篇 |
出版年
2020年 | 102篇 |
2019年 | 135篇 |
2018年 | 152篇 |
2017年 | 181篇 |
2016年 | 225篇 |
2015年 | 165篇 |
2014年 | 199篇 |
2013年 | 1135篇 |
2012年 | 353篇 |
2011年 | 395篇 |
2010年 | 278篇 |
2009年 | 271篇 |
2008年 | 372篇 |
2007年 | 407篇 |
2006年 | 403篇 |
2005年 | 353篇 |
2004年 | 329篇 |
2003年 | 351篇 |
2002年 | 349篇 |
2001年 | 155篇 |
2000年 | 181篇 |
1999年 | 157篇 |
1998年 | 178篇 |
1997年 | 159篇 |
1996年 | 164篇 |
1995年 | 155篇 |
1994年 | 156篇 |
1993年 | 129篇 |
1992年 | 142篇 |
1991年 | 134篇 |
1990年 | 117篇 |
1989年 | 119篇 |
1988年 | 117篇 |
1987年 | 126篇 |
1986年 | 129篇 |
1985年 | 139篇 |
1984年 | 144篇 |
1983年 | 156篇 |
1982年 | 174篇 |
1981年 | 161篇 |
1980年 | 150篇 |
1979年 | 124篇 |
1978年 | 165篇 |
1977年 | 153篇 |
1976年 | 144篇 |
1975年 | 141篇 |
1974年 | 143篇 |
1973年 | 136篇 |
1972年 | 105篇 |
1968年 | 72篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
111.
112.
Robert E. Koslow 《Sex roles》1987,17(9-10):521-527
The ability of males and females to use visual-spatial imagery as a facilitator of symbolic motor skill acquisition was investigated. Subjects, ordered by gender into control and mental imagery groups, performed 15 trials on a mirrored drawing task. The results indicated that, although both male and female mental imagery groups performed the task more skillfully than the control groups, the male mental imagery group scores over the early stages of performance were better as compared to the female mental imagery group scores. This difference was eradicated during the latter stages of performance. The findings, in addition to supporting the positive effects of mental imagery, lend support to the hypothesis that sex-related differences in selected visual-spatial tasks may be amendable through training followed by practice. 相似文献
113.
114.
Barbara Sommer 《Psychology of women quarterly》1987,11(2):233-242
The file drawer problem refers to a publication bias for positive results, leading to studies which support the null hypothesis being relegated to the file drawer. The assumption is that researchers are unable to publish studies with nonsignificant findings. A survey of investigators studying the menstrual cycle showed this assumption to be unwarranted. Much of the research did not lend itself to a hypothesis-testing model. A more important contribution to the likelihood of publication was research productivity, and researchers whose first study was published were more likely to have continued their work. 相似文献
115.
116.
Tacit knowledge in managerial success 总被引:2,自引:0,他引:2
117.
118.
119.
120.
Thomas G. Haring Blair Roger Mellanie Lee Catherine Breen Robert Gaylord-Ross 《Journal of applied behavior analysis》1986,19(2):159-171
Three students with moderate handicaps were taught to initiate and expand on conversational topics. The teaching procedure used stimuli generated from actual conversations with nonhandicapped peers. Generalization was assessed by audiotaping conversations between the handicapped students and their peers in natural school contexts without adult supervision. Results indicated that training generalized to natural contexts. These results were socially validated by undergraduate special education students, who rated tapes of two of the students' conversations during training phases as more socially competent than during baseline. Results are discussed in terms of the evaluation of complex social behavior as multioperant behaviors. 相似文献