Journal ArticleDOI
Web-Based Network Sampling: Efficiency and Efficacy of Respondent-Driven Sampling for Online Research
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TLDR
Web-based RDS (WebRDS) is found to be highly efficient and effective and methods for testing the validity of assumptions required by RDS estimation are presented.Abstract:
This study tests the feasibility, effectiveness, and efficiency of respondent-driven sampling (RDS) as a Web-based sampling method. Web-based RDS (WebRDS) is found to be highly efficient and effective. The online nature of WebRDS allows referral chains to progress very quickly, such that studies with large samples can be expected to proceed up to 20 times faster than with traditional sampling methods. Additionally, the unhidden nature of the study population allows comparison of RDS estimators to institutional data. Results indicate that RDS estimates are reasonable but not precise. This is likely due to bias associated with the random recruitment assumption and small sample size of the study. Finally, this article presents methods for testing the validity of assumptions required by RDS estimation.read more
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Journal ArticleDOI
Network Sampling with Memory: A proposal for more efficient sampling from social networks
Ted Mouw,Ashton M. Verdery +1 more
TL;DR: This article proposes an alternative strategy, network sampling with memory (NSM), which collects network data from respondents to reduce DEs and, correspondingly, the number of interviews needed to achieve a given level of statistical power.
Journal ArticleDOI
Knowledge, Indications and Willingness to Take Pre-Exposure Prophylaxis among Transwomen in San Francisco, 2013.
TL;DR: There is a need for further consideration of PrEP criteria that are specific and tailored to the risks for HIV faced by transwomen that are different from MSM and injection drug users.
Proceedings ArticleDOI
Sampling online social networks by random walk
Jianguo Lu,Dingding Li +1 more
TL;DR: It is shown that due to the scale-free nature of OSNs the estimators derived from random walk sampling scheme are much better than uniform random sampling, even when uniform random samples are available disregarding the notorious high cost of obtaining the random samples.
Journal ArticleDOI
An ideal journey: making bus travel desirable
TL;DR: This paper explored the ways in which people use their travel-time on local buses, and explained how this knowledge can assist with efforts in many "auto-centric" societies to make bus travel more attractive and encourage a shift away from excessive private car use.
Journal ArticleDOI
Fifty shades of freedom. Voluntary childlessness as women's ultimate liberation
TL;DR: In this paper, a qualitative semi-structured interview with 21 Swedish child-free women was conducted in order to identify two different discourses of freedom relevant for the construction of the childfree position and contextualize these discourses within the contemporary Swedish welfare society.
References
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Journal ArticleDOI
Collective dynamics of small-world networks
TL;DR: Simple models of networks that can be tuned through this middle ground: regular networks ‘rewired’ to introduce increasing amounts of disorder are explored, finding that these systems can be highly clustered, like regular lattices, yet have small characteristic path lengths, like random graphs.
Proceedings ArticleDOI
Random graphs
TL;DR: Some of the major results in random graphs and some of the more challenging open problems are reviewed, including those related to the WWW.
Journal ArticleDOI
Respondent-driven sampling : A new approach to the study of hidden populations
TL;DR: A new variant of chain-referral sampling, respondent-driven sampling, is introduced that employs a dual system of structured incentives to overcome some of the deficiencies of such samples and discusses how respondent- driven sampling can improve both network sampling and ethnographic investigation.
Reference EntryDOI
Snowball Sampling—I
TL;DR: In this paper, the authors present two different approaches to snowball sampling: the first is to ask a person to inform potential subjects about the research project and share the investigator's contact information, and then it is up to the potential subjects to contact the investigator.