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   1995篇
  免费   84篇
  国内免费   1篇
  2021年   17篇
  2019年   27篇
  2018年   53篇
  2017年   38篇
  2016年   73篇
  2015年   37篇
  2014年   41篇
  2013年   173篇
  2012年   62篇
  2011年   81篇
  2010年   50篇
  2009年   41篇
  2008年   56篇
  2007年   65篇
  2006年   69篇
  2005年   58篇
  2004年   74篇
  2003年   64篇
  2002年   61篇
  2001年   49篇
  2000年   45篇
  1999年   36篇
  1998年   32篇
  1997年   28篇
  1996年   21篇
  1995年   27篇
  1994年   33篇
  1993年   25篇
  1992年   24篇
  1991年   32篇
  1990年   26篇
  1989年   20篇
  1988年   22篇
  1987年   25篇
  1986年   28篇
  1985年   33篇
  1984年   25篇
  1983年   23篇
  1982年   27篇
  1981年   27篇
  1980年   18篇
  1979年   28篇
  1978年   21篇
  1977年   19篇
  1975年   18篇
  1974年   28篇
  1973年   25篇
  1972年   22篇
  1971年   23篇
  1969年   18篇
排序方式: 共有2080条查询结果,搜索用时 15 毫秒
41.
42.
Different patterns of figures moving behind a window were viewed by subjects while fixating a point 8.5–11° visual angle NW of the display. With prolonged viewing and small figures, the motion appeared to stop completely. With moving figures which stretched the whole way across the field, perpendicular to the direction of motion, a pulsating or wave motion was experienced. A reduction in the number of moving figures was also reported with all the patterns. When the stimulus motion was stopped, the expected after effect of motion in the opposite direction was usually experienced, although in many cases the stopping of the stimulus motion led to an immediate disappearance of the stimulus figures.  相似文献   
43.
Acquisition and transfer of zero-delay matching   总被引:4,自引:0,他引:4  
  相似文献   
44.
A review of the literature suggests that a paucity of information exists regarding how culture-specific issues such as being both Black and gifted influence the psychological needs and personality development of gifted Black students. Stellar attempts, however, are currently underway to develop theories and perspectives of racial identity development among Black students. These theories and perspectives are discussed in an attempt to understand and address the psychological and social needs of gifted Black students.  相似文献   
45.
46.
The development of expert and decision support systems requires the collection, organization, codification, and storage of a body of specialized knowledge. The development, using reconstructive methods, of two such knowledge bases, the first containing the current scientific literature and the second containing an expert’s knowledge, is described for an automated decision support system, the Mental Retardation-Expert. This system provides practitioners with assistance in the treatment of aggressive, self-injurious, and destructive behaviors displayed by individuals with mental retardation or developmental disabilities. The average interobserver reliability of the expert knowledge base ranged from 92.5% to 95.0% when calculated across four clinicians’ assessments of 31 abstracted cases.  相似文献   
47.
48.
49.
A primary focus of this study was to determine whether adults use traditional sex-type standards when choosing toys for boys or girls. I also investigated whether an adult's sex or gender role influences this decision. College students were shown pictures of 74 toys, and were asked to indicate whether they would buy each toy for a boy or girl. Traditional sex-type ratings were found. In addition, male subjects sex-typed toys to a greater extent than female subjects. Subjects' gender role was unrelated to sex-type ratings. Subjects also judged whether each toy provided educational value, required activity, and encouraged cooperation. Toys rated as requiring activity were not considered educational, but many toys considered educational were also rated as encouraging cooperation. In addition, toys considered masculine were rated as requiring more activity than feminine toys.The author thanks Fran Rosati, Dawn Pillitteri, and Karen Molison for their help with data scoring.  相似文献   
50.
This study evaluates the behavioral consequences of childhood abuse (sexual, physical, or both), with particular focus on prevalence of posttraumatic stress disorder (PTSD). Three abuse type groups and nonabused controls were contrasted on behavioral rating scales and on structured psychiatric interview data. The participants (109 abused children and 16 normal control children) were recruited from Arkansas Children’s Hospital and local agencies for abused children. As expected, proportionately more females than males were sexually abused. Overall, males were rated as more disturbed than females. Type of abuse did not consistently influence behavioral ratings. Externalizing scores were significantly higher than internalizing scores in all abused groups. PTSD was diagnosed in 50% of the abused children, with a higher rate for boys who had been sexually abused as opposed to physically abused only (58% versus 13%). The most frequent comorbid condition with PTSD was Separation Anxiety. Sexually abused boys were hospitalized for psychiatric treatment at a higher rate than were other abused children.  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