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   19579篇
  免费   1603篇
  国内免费   1111篇
  2023年   234篇
  2022年   227篇
  2021年   371篇
  2020年   659篇
  2019年   751篇
  2018年   688篇
  2017年   841篇
  2016年   793篇
  2015年   627篇
  2014年   661篇
  2013年   2257篇
  2012年   469篇
  2011年   622篇
  2010年   469篇
  2009年   710篇
  2008年   946篇
  2007年   983篇
  2006年   863篇
  2005年   721篇
  2004年   619篇
  2003年   531篇
  2002年   482篇
  2001年   295篇
  2000年   273篇
  1999年   243篇
  1998年   192篇
  1997年   156篇
  1996年   136篇
  1995年   126篇
  1994年   114篇
  1993年   91篇
  1992年   70篇
  1991年   52篇
  1990年   52篇
  1989年   29篇
  1988年   44篇
  1987年   28篇
  1985年   369篇
  1984年   419篇
  1983年   348篇
  1982年   451篇
  1981年   444篇
  1980年   446篇
  1979年   399篇
  1978年   447篇
  1977年   354篇
  1976年   354篇
  1975年   276篇
  1974年   280篇
  1973年   237篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
111.
This study provides a reexamination of the role of different decisional strategies in facilitating progress in occupational decision making. Although the assumptions that a rational decision making style is the preferred mode of vocational functioning has been endorsed in a variety of career theories and interventions, there has been conflicting evidence about the validity of this assumption. To examine the role of different decisional approaches in the progress of making an occupational decision, the rational, intuitive, and dependent decision making style scores of 71 undergraduate students were used to predict progress in occupational decision making. The results of the regression analyses failed to provide support for the assumption that a rational style is the most effective in accomplishing this careerrelated task, but indicated strong support for the conclusion that the use of dependent decisional strategies is damaging, particularly in early stages of the decisional process.  相似文献   
112.
Three measures of chronic self-esteem, plus four measures developed to assess situational components of self-esteem (task-specific self-esteem and social self-esteem), were administered to 238 undergraduates at a large, urban university and a community college in the southeastern United States. Evidence for a composite construct of self-esteem was found. Results also indicate task-specific self-esteem correlates as high as .42 (p < .01) with chronic self-esteem and as high as .76 (p < .01) with social self-esteem. Task-specific self-esteem was found to be a better predictor of grade point average than chronic or social self-esteem. Suggestions are made for further research on the situational components of self-esteem to extend current findings.  相似文献   
113.
Transfer of matching-to-figure samples in the pigeon   总被引:2,自引:1,他引:1       下载免费PDF全文
Three pigeons were trained on a modified six-key matching-to-sample procedure. The third peck on the figure-sample key (which presented a bird, hand, face, beetle, rabbit, fish, flower, or red hue, as the sample) lighted only one comparison key. Every three additional pecks on the sample lighted another comparison key, up to a maximum of five keys. Pecks on keys of matching figures produced grain. Pecks on nonmatching keys (mismatches) turned off all lights on the comparison keys and repeated the trial. Three figures were used during acquisition. The birds learned to peck each sample until the matching comparison stimulus appeared on one of three comparison stimulus keys, and then to peck that key. Later, five novel stimuli, employed as both sample and comparison stimuli, and two additional matching keys were added. Each bird showed matching transfer to the novel samples. The data suggest that the birds may have learned the concept of figure matching rather than a series of two-component chains or discrete five-key discriminations.  相似文献   
114.
115.
116.
117.
Behavioral conceptions of alcohol abuse often include the hypothesis that drinking behavior is a negatively reinforced operant, with ethanol intoxication viewed as alleviating aversive environmental and internal states. This hypothesis has not been confirmed or refuted by previous studies which employed mild stressors and limited assessment methodology. In the present experiment, 22 patients with severe phobias approached their phobic animal under two consecutive conditions—first while sober and second after drinking either a placebo or an intoxicating dose of ethanol. The severe anxiety induced was assessed behaviorally, physiologically and by the patient's self-report of fear. The intoxicated patients did not experience decreased anxiety, tachycardia or avoidance, compared to the placebo group. These results have clinical implications and suggest the need to reconsider tension-reduction theories of alcohol abuse.  相似文献   
118.
119.
120.
Fear and courage     
S. Rachman   《Behavior Therapy》1984,15(1):109-120
  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