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901.
Thomas J. Diciccio Michael A. Martin Steven E. Stern 《Revue canadienne de statistique》2001,29(1):67-76
The authors propose two methods based on the signed root of the likelihood ratio statistic for one‐sided testing of a simple null hypothesis about a scalar parameter in the présence of nuisance parameters. Both methods are third‐order accurate and utilise simulation to avoid the need for onerous analytical calculations characteristic of competing saddlepoint procedures. Moreover, the new methods do not require specification of ancillary statistics. The methods respect the conditioning associated with similar tests up to an error of third order, and conditioning on ancillary statistics to an error of second order. 相似文献
902.
Responsive design for household surveys: tools for actively controlling survey errors and costs 总被引:1,自引:0,他引:1
Robert M. Groves Steven G. Heeringa 《Journal of the Royal Statistical Society. Series A, (Statistics in Society)》2006,169(3):439-457
Summary. Over the past few years surveys have expanded to new populations, have incorporated measurement of new and more complex substantive issues and have adopted new data collection tools. At the same time there has been a growing reluctance among many household populations to participate in surveys. These factors have combined to present survey designers and survey researchers with increased uncertainty about the performance of any given survey design at any particular point in time. This uncertainty has, in turn, challenged the survey practitioner's ability to control the cost of data collection and quality of resulting statistics. The development of computer-assisted methods for data collection has provided survey researchers with tools to capture a variety of process data ('paradata') that can be used to inform cost–quality trade-off decisions in realtime. The ability to monitor continually the streams of process data and survey data creates the opportunity to alter the design during the course of data collection to improve survey cost efficiency and to achieve more precise, less biased estimates. We label such surveys as 'responsive designs'. The paper defines responsive design and uses examples to illustrate the responsive use of paradata to guide mid-survey decisions affecting the non-response, measurement and sampling variance properties of resulting statistics. 相似文献
903.
THE EFFECT OF YOUTH ALCOHOL INITIATION ON HIGH SCHOOL COMPLETION 总被引:1,自引:0,他引:1
The social environment inherent in schools impacts both alcohol consumption onset and high school completion. The results reported here, based on data from the 1979–96 NLSY panels, show that the social coincidences between alcohol consumption and education are important determinants of both education completion and alcohol onset. Ignoring the social nature of these simultaneous decisions underestimates the impact of alcohol onset on education. After correcting for the presence of an endogenous positive relationship between schooling and alcohol consumption, we find that alcohol initiation before age 14 significantly reduces the probability of timeously completing high school by between 7% and 22%. (JEL I18 , I21 ) 相似文献
904.
A Bayesian design criterion for selection experiments in plant breeding is derived using a utility function that minimizes the risk of an incorrect selection. A prior distribution on the heritability parameter is used to complete the definition of the design optimality criterion. An example is given with evaluations of the criterion for different prior distributions on the heritability. Though coming from a genetic motivation this criterion should prove useful for any other types of experiments with random treatment effects. 相似文献
905.
An understanding of outreaching social work in Hong Kong is viable through an analysis of discourses constructed and experienced
by social workers. The discourses address hegemony by the government and consent, resistance, and identity arising from social
workers. These discourses were the focus of the present study, which relied on repeated in-depth interviews with 20 practitioners
in the outreaching social work field. The results give insight in three main ways: they unfold the discourses of hegemony
and consent in terms of effectiveness, accountability, and social control; they address the discourses of resistance in terms
of incompatibility, social defense, and others; and they examine professional identity in terms of respect for self-determination,
relationship building, youth development, and unionization. All the discourses and identities emerged from a process of international
spillover. Moreover, the study found that social workers realized that the hegemonic crisis triggered identity development
because of the need to preserve the profession. The study implies that the social work profession has high levels of commitment
and internationalization, both of which help proliferate the profession. 相似文献
906.
907.
This study builds on a conceptual framework that explores of the relationship between relative fan attendance, stadium size and home field advantage in college football. We extend the conceptual model by providing empirical estimates of the impact that various ticket allotment arrangements and home stadium size have on the probability of winning in college football. The Auburn–Alabama rivalry (the “Iron Bowl”) provides a unique case given that the series has been played both at a neutral site with an equal division of tickets, as well as on a home-and-home basis with an uneven ticket split and nonuniform stadium capacities. 相似文献
908.
A nail-biting election 总被引:1,自引:1,他引:0
In the first competitive election for President of the Social Choice and Welfare Society, the (official) approval-voting
winner differed from the (hypothetical) Borda count winner, who was also the Condorcet winner. But because the election was
essentially a toss-up, it is impossible to say who should have won. The election for Council was more true to form of other professional-society elections, with the winners identical,
and even their rankings almost duplicative, under both voting systems.
Received: 11 April 2000/Accepted: 26 March 2001 相似文献
909.
Steven Strasnick 《Theory and Decision》1979,11(2):195-206
Axiomatic decision theory has proven to be a valuable analytical tool in many disciplines, and in this paper I discuss its application to moral theory. The first part of the paper discusses the general structure of moral theory, and it argues that morality need not be identified with a particular moral principle. The concept of a moral framework is introduced, and a framework for use in analyzing issues of distributive justice is presented in the second section. The application of this framework is discussed in the paper's final section, and two different moral situations are analyzed. The utilitarian principle is argued to be appropriate for the first situation in which a scarce good is to be efficiently distributed, while Rawls' difference principle is claimed to be the correct one for the more abstract issue of basic institutional justice. 相似文献
910.
Domenico Parisi Diane K. McLaughlin Steven Michael Grice Michael Taquino Duane A. Gill 《Rural sociology》2003,68(4):491-512
Abstract A general criticism of the 1996 Welfare Reform Act is that it is primarily the result of an urban political agenda, and it may hurt rather than help the rural poor. Under the new welfare system, the rural poor that are most likely to be affected are those who live in socially, economically, and spatially disadvantaged communities. More residents in these communities are likely to need TANF, clients in these communities are least likely to leave TANF by finding employment, and community organizations are likely to have more limited resources to help TANF recipients. The objective of this study is to examine the extent to which variations in community conditions account for differences in TANF participation rates. Using 1997 TANF data from the Mississippi Department of Human Services, we estimated OLS regression models of local TANF participation rates across 100 communities in nonmetro counties. The results indicate that TANF participation rates tend to be higher in communities with high concentrations of African Americans, less faith‐based activeness, more employment in retail trade, spatial concentration of the poor, and located in the Delta. 相似文献