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
Financing Student Migration: Evidence for a Commitment Problem
TL;DR: The authors found evidence of non-commitment bargaining between student, parents and an outside helper in a dataset of Cameroonian students, which suggests that students from credit-constrained families might not benefit from the support of a helper even though the returns to their migration can be significant.
Journal ArticleDOI
A performance assessment of web-based respondent driven sampling among workers with precarious employment in Sweden.
TL;DR: WebRDS successfully recruited a sufficient sample of workers with precarious employment from which population estimates could be made and future studies should consider implementing webRDS on a national level in order to further study this population.
Journal ArticleDOI
“Backstage Autonomy”: Religious-Zionist State Widows in Second Marriages Manage Competing Expectations
TL;DR: The authors examined the coping mechanisms of state widows belonging to Israel's Religious-Zionist sector, whose husbands died at an early age either during military service or in terrorist attacks.
Estimating the Quasi-Underground: Oregon's Informal Marijuana Economy
TL;DR: In this paper, the authors used Respondent-Driven Sampling (RDS) procedures and survey methods to investigate the size of the informal marijuana economy in Oregon and found that average marijuana users consume approximately 4.5 ounces per year and pay approximately $177 per ounce.
General Aviation Pilot Acceptance and Adoption of Electronic Flight Bag Technology
TL;DR: In this paper, the authors used an adapted version of the extended Unified Theory of Acceptance and Use of Technology (UTAUT2) to examine electronic flight bag acceptance and adoption for general aviation (GA) pilots.
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.