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   355篇
  免费   16篇
管理学   34篇
民族学   2篇
人口学   29篇
丛书文集   1篇
理论方法论   39篇
综合类   2篇
社会学   240篇
统计学   24篇
  2023年   3篇
  2022年   1篇
  2021年   4篇
  2020年   10篇
  2019年   13篇
  2018年   11篇
  2017年   18篇
  2016年   7篇
  2015年   15篇
  2014年   18篇
  2013年   80篇
  2012年   17篇
  2011年   16篇
  2010年   10篇
  2009年   11篇
  2008年   12篇
  2007年   12篇
  2006年   9篇
  2005年   7篇
  2004年   9篇
  2003年   6篇
  2002年   7篇
  2001年   9篇
  2000年   6篇
  1999年   7篇
  1998年   3篇
  1997年   4篇
  1996年   2篇
  1995年   4篇
  1994年   2篇
  1993年   2篇
  1992年   4篇
  1991年   4篇
  1990年   5篇
  1989年   1篇
  1988年   1篇
  1987年   3篇
  1986年   2篇
  1982年   1篇
  1980年   2篇
  1979年   1篇
  1978年   2篇
  1977年   2篇
  1976年   3篇
  1974年   1篇
  1972年   1篇
  1970年   1篇
  1969年   1篇
  1966年   1篇
排序方式: 共有371条查询结果,搜索用时 921 毫秒
171.
172.
Traditional new product diffusion models have assumed a constant market potential over the planning horizon for forecasting product adoptions. This assumption is conceptually unsound and is likely to yield either theoretically unacceptable parameter estimates of the model or poor demand forecasts. This paper presents a dynamic growth model which relaxes this assumption. Model illustrations, limitations and further extensions are included.  相似文献   
173.
This purpose of this study was to explore the moderating influence of gender on the relationship between child maltreatment and internalizing symptoms (e.g., affective and somatic problems) and externalizing behavior (e.g., rule breaking behavior and aggression) among children aged 7–12 years old. Using a longitudinal comparison group design and a sample of 300 youth of which 56% (n = 168) had substantiated cases of child maltreatment, results of a structural equation modeling revealed that internalizing symptoms exerted a mediating influence that was conditioned by gender. Only girls’ internalizing symptoms were found to mediate the link between child maltreatment and externalizing behavior while a direct relationship between maltreatment and externalizing behavior was found among boys. These findings provide evidence for gender differences in the pathways between being child maltreatment and maladaptive thoughts, feelings, and behaviors. Thus, adapting evidence-based strategies that target gender specific internalizing behaviors and externalizing behaviors among maltreated youth may significantly reduce the risk of short and long-term maladaptive behavior.  相似文献   
174.
175.
176.
This article responds to D. A. Jepsen's (2000) commentary on Sampson et al.'s theory‐based approach to using readiness assessment to improve career services (J. P. Sampson, G. W. Peterson, R. C. Reardon, & J. G. Lenz, 2000). Three topics are included in this response: the reliability, validity, and utility of readiness assessment measures; verbal ability and the use of cognitive information‐processing theory in practice; and the potential contribution of reflective evaluation in career decision making. This article concludes with recommended research questions to examine the impact of readiness assessment on the effectiveness of career service delivery.  相似文献   
177.
The authors review log‐linear models for estimating the size of a closed population and propose a new log‐linear estimator for experiments having between animal heterogeneity and a behavioral response. They give a general formula for evaluating the asymptotic biases of estimators of abundance derived from log‐linear models. They propose simple frequency modifications for reducing these asymptotic biases and investigate the modifications in a Monte Carlo experiment which reveals that they reduce both the bias and the mean squared error of abundance estimators.  相似文献   
178.
The Social Cognitions of Socially Withdrawn Children   总被引:2,自引:0,他引:2  
The purpose of this study was to examine the social cognitions of peer‐identified socially withdrawn children. Participants included 457 children from grades four, five and six (54% females, 46% males). Children completed a selection of self‐ and peer‐report measures including: (1) peer‐rated behavioral nominations; (2) hostile intent biases and social responses to ambiguous situations; (3) social goals and self‐efficacy; and (4) a newly developed measure of causal attributions. An extreme groups procedure was used to identify three groups of children: (1) socially withdrawn (n=50); (2) aggressive (n=53); and (3) a comparison group (n=206). As compared with their peers, withdrawn children displayed a pattern of self‐defeating attributions for social situations, reported lower efficacy for assertive goals, and indicated a preference for non‐assertive, withdrawn strategies to deal with hypothetical conflict situations. Findings are discussed with respect to implications for interventions, and directions for further research are presented.  相似文献   
179.
Children are entering foster care at an alarming rate. There were an estimated 429,000 children in out-of-home care at the end of 1991, which is a 64% increases since 1982 (Tatara, 1990). The largest proportion of children in out-of-home care are between the ages of 13 and 18 (Mech, 1988; Tatara, 1989). Each year, an estimated 16,000 (Sims, 1988) to 18,000 (Ryan, McFadden, Rice, & Warren, 1988) youth are emancipated and leave foster care to assume independence. Many of these young adults are not prepared for self-sufficiency (Barth, 1986, 1990; Festinger, 1983; Westat, 1988). Adolescents from varying out-of-home care settings are eligible for a set of services—Independent Living Programs.The findings of this study suggest that Independent Living Programs may have positive impact on the ability of youth to be self-sufficient at the time of discharge from foster care programs. The youth who participated in the ILP program were more likely to complete high school, have employment history and employment at discharge, and were more likely to be self supporting at the closing of the case.and Ms. Scannapieco is a research assistant, Temple University Center for Human Development and Education.  相似文献   
180.
Although existing literature suggests that client anticipations affect career counseling, previous studies have not systematically assessed client anticipations prior to using computer‐assisted career guidance (CACG) systems in career counseling. This study describes how 55 clients from a career center at a large, southeastern university anticipated using CACG systems to help in their career decision making and problem solving. Using a Cognitive Information Processing framework, responses to a cued and a free response survey indicated that clients' most frequent anticipations included increased career options, enhanced self‐knowledge, and strengthened occupational knowledge.  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