Fit for purpose? The impact of between-wave engagement strategies on response to a longitudinal survey

Maintaining participant engagement in longitudinal surveys has been a key focus of survey research, and has implications for the quality of response and cost of administration.

Fit for purpose? The impact of between-wave engagement strategies on response to a longitudinal survey

Andrew Cleary

Ipsos MORI

Nigel Balmer

UCL

Introduction

It is widely accepted that, in sample surveys, non-response bias is the major component of total survey error (Groves 1989). Although recent debate has focused on demonstrating the lack of a clear link between response rates and non-response bias (Groves 2006; Groves & Peytcheva 2008), the options for detecting and ameliorating its effects are limited, hence there remain strong grounds to maximise response rates to mitigate the risk of bias. Longitudinal surveys present a special case where,...

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