全文获取类型
收费全文 | 16145篇 |
免费 | 621篇 |
国内免费 | 4篇 |
专业分类
16770篇 |
出版年
2019年 | 213篇 |
2018年 | 259篇 |
2017年 | 221篇 |
2016年 | 258篇 |
2015年 | 169篇 |
2014年 | 262篇 |
2013年 | 1278篇 |
2012年 | 435篇 |
2011年 | 490篇 |
2010年 | 290篇 |
2009年 | 314篇 |
2008年 | 415篇 |
2007年 | 445篇 |
2006年 | 422篇 |
2005年 | 344篇 |
2004年 | 374篇 |
2003年 | 334篇 |
2002年 | 330篇 |
2001年 | 453篇 |
2000年 | 513篇 |
1999年 | 342篇 |
1998年 | 205篇 |
1997年 | 154篇 |
1996年 | 166篇 |
1995年 | 164篇 |
1992年 | 276篇 |
1991年 | 285篇 |
1990年 | 296篇 |
1989年 | 276篇 |
1988年 | 268篇 |
1987年 | 235篇 |
1986年 | 246篇 |
1985年 | 259篇 |
1984年 | 191篇 |
1983年 | 207篇 |
1982年 | 158篇 |
1980年 | 157篇 |
1979年 | 248篇 |
1978年 | 216篇 |
1977年 | 151篇 |
1975年 | 215篇 |
1974年 | 243篇 |
1973年 | 269篇 |
1972年 | 225篇 |
1971年 | 210篇 |
1970年 | 162篇 |
1969年 | 197篇 |
1968年 | 249篇 |
1967年 | 240篇 |
1966年 | 211篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
101.
Fifteen rats performed in a standard radial-arm maze task (Experiment 1) and in a modified task with a set of forced choices and a 15-min retention interval prior to completion of the maze (Experiment 2). In addition to the standard measure of choice in the radial-arm maze, orientation toward arms was measured and considered to constitute go-no-go "microchoice" decisions. Rats investigated but rejected many arms. A model of choice was developed in which it was assumed that choice decisions about arms were made independently and that microchoices were not selectively guided toward baited arms. The model performed nearly as well as the rats. These results place important limitations on the theory that choice behavior in the radial-arm maze is guided by a cognitive map. 相似文献
102.
103.
Elders exposed to either progressive or imaginal relaxation procedures reported significant relaxation effects and showed improvement on measures of personal functioning. The results of the Physical Assessment Scale of the Relaxation Inventory indicated that relaxation responses were acquired within and across sessions. Large, consistent changes in relaxation occurred in all 4 sessions. The Symptom Checklist-90-R, which measures self-reported personal adjustment, showed significant positive changes following relaxation training and at 1-month follow-up. Elders who imagined muscle tension release profited as much as those engaged in actual muscle tension-release activities. This finding is of importance for older adults who may experience physical limitations that contraindicate muscle-tension-release procedures. 相似文献
104.
Adult age differences were explored on 3 short tests of the ability to generate and manipulate mental images. Age-related decrements were found in all 3 tests and were especially marked on the Clock Test. The tests are all reliable, as shown by test-retest reliability coefficients. Correlations also revealed that the Brooks Letter Test and the East-West Test appear to tap one common underlying ability, whereas the Clock Test measured a somewhat different ability. The East-West and Clock tests, in particular, may provide rapid and easily administered assessments of age-related changes in aspects of mental imagery. 相似文献
105.
The development of a campus-based Substance Abuse Prevention Program (SAPP) is discussed. The program has been designed in accordance with recommendations made by prominent authorities in this field, keeping in mind the needs of the campus at which the program is located. Suggestions for developing such programs are provided. 相似文献
106.
PHILLIP B. NIFFENEGGER THOMAS F. HOLCOMB 《Journal of counseling and development : JCD》1992,70(5):642-644
This article describes how state legislators were the target of a video marketing campaign aimed at increasing the funding for elementary counselors. How the video was developed, distributed, and used are discussed. 相似文献
107.
108.
109.
Parent-tutoring procedures: Experimental analysis and validation of generalization in oral reading across passages,settings, and time 总被引:1,自引:0,他引:1
Steven F. Duvall Ph.D. Joseph C. Delquadri Ph.D. Marlene Elliott Ph.D. R. Vance Hall Ph.D. 《Journal of Behavioral Education》1992,2(3):281-303
A study that involved parents as reading tutors was carried out at home during the summer with four elementary children, three with learning disabilities. One purpose was to determine the effects of tutoring in the basal reader on reading rates at home. Another purpose was to determine potential generalization effects as a result of parent tutoring on different academic tasks at home and, later at school, on different and similar tasks. A combination multiple-baseline and reversal design tested for replication and generalization effects. Increases in correct rates were noted for the targeted variables across conditions. The results indicated that parents tutoring with school basal texts during the summer produced marked increases in reading rates that generalized at home to different academic tasks and at school to different and similar tasks. This suggests that parents, when using specific tutoring procedures, can increase their children's academic skills. 相似文献
110.
Joyce F. Lakey 《Journal of Addictions & Offender Counseling》1992,13(1):2-10
The author describes mythical beliefs, thinking errors, and faulty attitudes collected from a group of male juvenile sex offenders. Therapists need this information to develop effective treatment strategies for replacing distortions and misperceptions with correct and moral information as a foundation for change. 相似文献