全文获取类型
收费全文 | 8325篇 |
免费 | 128篇 |
国内免费 | 1篇 |
专业分类
管理学 | 1132篇 |
民族学 | 30篇 |
人口学 | 744篇 |
丛书文集 | 32篇 |
理论方法论 | 704篇 |
综合类 | 135篇 |
社会学 | 3719篇 |
统计学 | 1958篇 |
出版年
2020年 | 121篇 |
2019年 | 176篇 |
2018年 | 170篇 |
2017年 | 265篇 |
2016年 | 179篇 |
2015年 | 158篇 |
2014年 | 188篇 |
2013年 | 1531篇 |
2012年 | 249篇 |
2011年 | 209篇 |
2010年 | 188篇 |
2009年 | 160篇 |
2008年 | 234篇 |
2007年 | 230篇 |
2006年 | 190篇 |
2005年 | 164篇 |
2004年 | 147篇 |
2003年 | 139篇 |
2002年 | 152篇 |
2001年 | 189篇 |
2000年 | 167篇 |
1999年 | 152篇 |
1998年 | 130篇 |
1997年 | 130篇 |
1996年 | 126篇 |
1995年 | 110篇 |
1994年 | 85篇 |
1993年 | 126篇 |
1992年 | 140篇 |
1991年 | 119篇 |
1990年 | 130篇 |
1989年 | 109篇 |
1988年 | 107篇 |
1987年 | 111篇 |
1986年 | 99篇 |
1985年 | 84篇 |
1984年 | 117篇 |
1983年 | 98篇 |
1982年 | 94篇 |
1981年 | 63篇 |
1980年 | 93篇 |
1979年 | 105篇 |
1978年 | 72篇 |
1977年 | 82篇 |
1976年 | 70篇 |
1975年 | 86篇 |
1974年 | 68篇 |
1973年 | 54篇 |
1972年 | 61篇 |
1971年 | 52篇 |
排序方式: 共有8454条查询结果,搜索用时 0 毫秒
841.
A population sample registry for public health survey investigations: methods,lessons, and successes
Katherine A. James Arnold H. Levinson Yaqiang Li Carsten Baumann Ali Maffey 《International Journal of Social Research Methodology》2018,21(5):565-574
Public health relies on sample surveys to monitor the health of populations and investigate factors that contribute to population health and illness. Such investigations require surveying individuals who are selected in ways that support statistical inference to the population. Faced with rising costs and declining participation, survey researchers are exploring economical ways to recruit samples that validly represent larger populations. The current report describes an innovative resource, the Colorado Adult Population Sample–Survey Research Registry, which maintains survey access to respondents from a probability-based state health survey. We describe recruitment and retention strategies, explore representativeness, report several studies that used the registry, and discuss future directions. 相似文献
842.
Few longitudinal studies have examined the pathways through which family violence leads to dating aggression. In the current study the authors used 3 waves of data obtained from 8th‐ and 9th‐grade adolescents (N = 1,965) to examine the hypotheses that the prospective relationship between witnessing family violence and directly experiencing violence and physical dating aggression perpetration is mediated by 3 constructs: (a) normative beliefs about dating aggression (norms), (b) anger dysregulation, and (c) depression. Results from cross‐lagged regression models suggest that the relationship between having been hit by an adult and dating aggression is mediated by changes in norms and anger dysregulation, but not depression. No evidence of indirect effects from witnessing family violence to dating aggression was found through any of the proposed mediators. Taken together, the findings suggest that anger dysregulation and normative beliefs are potential targets for dating abuse prevention efforts aimed at youth who have directly experienced violence. 相似文献
843.
We explored how the therapeutic alliance contributed to retention in Brief Strategic Family Therapy by analyzing videotapes of eight‐first sessions in which four therapists worked with one family that stayed in treatment and one family that dropped out. Although behavioral exchange patterns between clients and therapists did not differ by retention status, positive therapist alliance‐related behavior followed negative client alliance behavior somewhat more frequently in the retained cases. In the qualitative aspect of the study, four family therapy experts each viewed two randomly assigned sessions and commented on their quality without knowing the families’ retention status. A qualitative analysis of the audiotaped commentaries revealed 18 alliance‐related themes that were more characteristic of either the retained or the nonretained cases. 相似文献
844.
Doan Dana R. H. 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2022,33(1):213-214
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - 相似文献
845.
Child and Adolescent Social Work Journal - The current study used a resilience framework to describe youth experiences with their caseworkers, examine the association of youth–caseworker... 相似文献
846.
Ofir Harari Grace Hsu Louis Dron Jay J. H. Park Kristian Thorlund Edward J. Mills 《Pharmaceutical statistics》2021,20(2):256-271
The Bayesian paradigm provides an ideal platform to update uncertainties and carry them over into the future in the presence of data. Bayesian predictive power (BPP) reflects our belief in the eventual success of a clinical trial to meet its goals. In this paper we derive mathematical expressions for the most common types of outcomes, to make the BPP accessible to practitioners, facilitate fast computations in adaptive trial design simulations that use interim futility monitoring, and propose an organized BPP-based phase II-to-phase III design framework. 相似文献
847.
Gabriel L. Schlomer H. Harrington Cleveland Mark E. Feinberg Jessica L. Murray David J. Vandenbergh 《Journal of research on adolescence》2021,31(1):189-203
The most extensively studied influence on adolescent conduct problem behaviors is peers, and the literature points to genetics as one source of individual differences in peer influence. The purpose of this study was to test the hypothesis that an environmental sensitivity genetic index comprised of DRD4, 5‐HTTLPR, and GABRA2 variation would moderate the association between peer and adolescent conduct problems. Latent growth modeling was applied to PROSPER project longitudinal data from adolescents and their peers. Results showed the hypothesis was supported; adolescents with more copies of putative sensitivity alleles were more strongly influenced by their peers. The interaction form was consistent with differential susceptibility in follow‐up analyses. Strengths and weaknesses of genetic aggregates for sensitivity research are discussed. 相似文献
848.
849.
Edwin H. Reeder 《Social Studies》2013,104(7):360-363
850.
H. H. HOYT 《Social Studies》2013,104(2):63-66
Media consolidation and convergence have increasingly changed the way individuals as both consumers and citizens access, process, and communicate information at the local, national, and global levels. Media industries and institutions influence public perception and occupy our time at work and at home more and more. Media literacy has become recognized as a twenty-first-century skill necessary for civic competence and the development of informed, responsible citizens. Although it has long been established in the curricula of other nations, it is relatively new in the United States. Media literacy is not simply teaching with media—rather, it entails teaching about media. Key frameworks such as the Text, Audience, and Production (TAP) model, which is explained in this article, can be used to help students systematically analyze and evaluate the wide range of media texts they are exposed to on a daily basis. The author discusses how media literacy is also compatible with several of the major strands identified by the National Council for the Social Studies and can be facilitated by the growing range of resources available to teachers. 相似文献