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   188123篇
  免费   8353篇
  国内免费   155篇
  2020年   2782篇
  2019年   3444篇
  2018年   3661篇
  2017年   4112篇
  2016年   4707篇
  2015年   3934篇
  2014年   4807篇
  2013年   23449篇
  2012年   4989篇
  2011年   4288篇
  2010年   4096篇
  2009年   4859篇
  2008年   4424篇
  2007年   4047篇
  2006年   4492篇
  2005年   4402篇
  2004年   3876篇
  2003年   3472篇
  2002年   3327篇
  2001年   4044篇
  2000年   3916篇
  1999年   3654篇
  1998年   2893篇
  1997年   2729篇
  1996年   2640篇
  1995年   2453篇
  1994年   2412篇
  1993年   2388篇
  1992年   3038篇
  1991年   2844篇
  1990年   2689篇
  1989年   2546篇
  1988年   2535篇
  1987年   2524篇
  1986年   2558篇
  1985年   2754篇
  1984年   2747篇
  1983年   2495篇
  1982年   2443篇
  1981年   2420篇
  1980年   2247篇
  1979年   2528篇
  1978年   2332篇
  1977年   2248篇
  1976年   2052篇
  1975年   2234篇
  1974年   2313篇
  1973年   2249篇
  1972年   1831篇
  1971年   1729篇
排序方式: 共有10000条查询结果,搜索用时 203 毫秒
951.
A comparison study is an experiment whose primary purpose is to compare directly (regardless of experimental design) at least two different procedures for changing behavior or two or more components of such a procedure. This paper argues that, in spite of their popularity, such studies typically lead to inappropriate inferences with poor generality based on improper evidence gathered in support of the wrong question, thus wasting the limited experimental resources. The discussion considers problems concerning the functions of comparison studies, the nature of the comparisons that are attempted, the generality of their findings, and the limited role that they can play in technological research.  相似文献   
952.
953.
This study investigated attitudes about body weight and appearance in a group of young adults. Undergraduate psychology students at the Flinders University of South Australia and at the University of Vermont were asked about their weight and dieting, consciousness about their body, the degree to which their weight had interfered with social activities, their perceptions about the causes of obseity, and their stereotypes about fat and thin men and women. Although 20% of the sample was overweight, 50% of subjects perceived themselves to be overweight to some degree. As expected, weight was a much greater issue for women, who felt more overweight, dieted more, expressed more body consciousness, and reported that weight had interfered more with social activities than did men. Also as expected, Vermont students reported greater frequency of dieting, more concern about weight, and more body consciousness than did students in Australia. Finally, men and women in both cultures stereotyped obese targets significantly more negatively than they did nonobese targets. The results indicate excessive and maladaptive concerns with weight in general, and among women and U.S. students in particular.  相似文献   
954.
955.
956.
A stratified random sample of college student affairs divisions was surveyed to assess the depth and breadth of student paraprofessional use. More than 72% of the responding institutions reported having one or more student paraprofessional programs.  相似文献   
957.
The authors discuss the application of Gestalt theory as a means of dealing with the surviving classmates of a student who committed suicide.  相似文献   
958.
Braun, A.L., & Novak, D.E. (1986, November/December). A study of EAP non-utilization. EAP Digest, pp. 52–55. O'Connell, V. (1987, March/April). A strategy for overcoming supervisors' resistance. EAP Digest, pp. 63–66. Penzer, W.N. (1987, March/April). Toward sustaining quality mental health services. EAP Digest, pp. 35–40.  相似文献   
959.
The authors describe a career information hotline for rural and farm residents affected by the farm crisis as one way a university career center and extension division can make their resources more generally available to residents. The rural crisis is real, but a crisis brings opportunities. There are opportunities to provide needed services and help ease the personal cost for families and reduce the declining quality of life in rural communities. (Heffernan & Heffernan, 1985, p. 17)  相似文献   
960.
The goal of the authors is to (a) create an awareness among counselors about the nature and prevalence of child sexual abuse, (b) examine myths and realities about the topic, and (c) present recommendations for interviewing suspected victims of child sexual abuse.  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