Volume 33 - Article 24 | Pages 665–700

Adapting chain referral methods to sample new migrants: Possibilities and limitations

By Lucinda Platt, Renee Luthra, Tom Frere-Smith

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Date received:28 Aug 2014
Date published:23 Sep 2015
Word count:9582
Keywords:hard-to-reach samples, immigrant networks, integration, new immigrants, nonresponse, respondents-driven samples, surveys
DOI:10.4054/DemRes.2015.33.24
 

Abstract

Background: Demographic research on migration requires representative samples of migrant populations. Yet recent immigrants, who are particularly informative about current migrant flows, are difficult to capture even in specialist surveys. Respondent-driven sampling (RDS), a chain referral sampling and analysis technique, potentially offers the opportunity to achieve population-level inference of recently arrived migrant populations.

Objective: We evaluate the attempt to use RDS to sample two groups of migrants, from Pakistan and Poland, who had arrived in the UK within the previous 18 months, and we present an alternative approach adapted to recent migrants.

Methods: We discuss how connectedness, privacy, clustering, and motivation are expected to differ among recently arrived migrants, compared to typical applications of RDS. We develop a researcher-led chain referral approach, and compare success in recruitment and indicators of representativeness to standard RDS recruitment.

Results: Our researcher-led approach led to higher rates of chain-referral, and enabled us to reach population members with smaller network sizes. The researcher-led approach resulted in similar recruiter-recruit transition probabilities to traditional RDS across many demographic and social characteristics. However, we did not succeed in building up long referral chains, largely due to the lack of connectedness of our target populations and some reluctance to refer. There were some differences between the two migrant groups, with less mobile and less hidden Pakistani men producing longer referral chains.

Conclusions: Chain referral is difficult to implement for sampling newly arrived migrants. However, our researcher-led adaptation shows promise for less hidden and more stable recent immigrant populations.

Contribution: The paper offers an evaluation of RDS for surveying recent immigrants and an adaptation that may be effective under certain conditions.

Author's Affiliation

Lucinda Platt - London School of Economics and Political Science, United Kingdom [Email]
Renee Luthra - University of Essex, United Kingdom [Email]
Tom Frere-Smith - Ipsos MORI, United Kingdom [Email]

Other articles by the same author/authors in Demographic Research

» Design and implementation of a high-quality probability sample of immigrants and ethnic minorities: Lessons learnt
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