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   15251篇
  免费   364篇
  国内免费   3篇
管理学   2210篇
民族学   50篇
人口学   1335篇
丛书文集   51篇
理论方法论   1333篇
综合类   215篇
社会学   7352篇
统计学   3072篇
  2020年   197篇
  2019年   284篇
  2018年   292篇
  2017年   408篇
  2016年   311篇
  2015年   256篇
  2014年   324篇
  2013年   2727篇
  2012年   409篇
  2011年   385篇
  2010年   331篇
  2009年   296篇
  2008年   394篇
  2007年   383篇
  2006年   362篇
  2005年   330篇
  2004年   285篇
  2003年   248篇
  2002年   283篇
  2001年   324篇
  2000年   322篇
  1999年   275篇
  1998年   261篇
  1997年   239篇
  1996年   243篇
  1995年   233篇
  1994年   220篇
  1993年   248篇
  1992年   269篇
  1991年   261篇
  1990年   286篇
  1989年   234篇
  1988年   253篇
  1987年   231篇
  1986年   217篇
  1985年   215篇
  1984年   242篇
  1983年   222篇
  1982年   186篇
  1981年   140篇
  1980年   167篇
  1979年   210篇
  1978年   155篇
  1977年   149篇
  1976年   144篇
  1975年   134篇
  1974年   135篇
  1973年   103篇
  1972年   95篇
  1971年   89篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
Many proposed methods for analyzing clustered ordinal data focus on the regression model and consider the association structure within a cluster as a nuisance. However, the association structure is often of equal interest—for example, temporal association in longitudinal studies and association between responses to similar questions in a survey. We discuss the use, appropriateness, and interpretability of various latent variable and Markov models for the association structure and propose a new structure that exploits the ordinality of the response. The models are illustrated with a study concerning opinions regarding government spending and an analysis of stability and change in teenage marijuana use over time, where we reveal different behavioral patterns for boys and girls through a comprehensive investigation of individual response profiles.  相似文献   
92.
93.
A nationally representative sample of respondents estimated their fatality risks from four types of natural disasters, and indicated whether they favored governmental disaster relief. For all hazards, including auto accident risks, most respondents assessed their risks as being below average, with one-third assessing them as average. Individuals from high-risk states, or with experience with disasters, estimate risks higher, though by less than reasonable calculations require. Four-fifths of our respondents favor government relief for disaster victims, but only one-third do for victims in high-risk areas. Individuals who perceive themselves at higher risk are more supportive of government assistance.  相似文献   
94.
This study examined the unique and interactive roles of mother and teacher depressive symptoms in child adjustment in 277 African American single mother‐headed families, as well as whether the associations differed depending on the age and gender of the child. Findings revealed a significant association between maternal depressive symptoms and child depressive symptoms in girls, but not boys. Moreover, the combination of higher levels of both mother and teacher depressive symptoms was associated with the highest level of child depressive symptoms and, for younger children, externalizing symptoms. The importance of considering the multiple social contexts in which children interact is discussed.  相似文献   
95.
This study challenges the prevailing view that marital companionship promotes marital satisfaction. By following a cohort of married couples for over a decade and by incorporating several methodological improvements—such as refining the measurement of marital satisfaction, determining how much spouses enjoy doing the leisure activities they pursue together and apart, and using diary data to portray marital leisure patterns—we found that the association between companionship and satisfaction is less robust than previously believed, and that it depends on how often spouses pursue activities that reflect their own and their partner's leisure preferences. Over time, involvement in leisure liked by husbands but disliked by wives, whether as a couple or by husbands alone, is both a cause and a consequence of wives' dissatisfaction.  相似文献   
96.
97.
98.
99.
100.
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