What question did this study set out to answer?

To quantify the increase in mailed questionnaire response attributable to monetary incentives across different cash values.

October 18, 2005Journal of Epidemiology & Community HealthOpen Access

Meta-analysis of randomised trials of monetary incentives and response to mailed questionnaires

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Authors

PEPhil EdwardsLondon School of Hygiene & Tropical Medicine

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Implication

Meta-analysis of randomized trials demonstrates increased response to mailed questionnaires with monetary incentives, indicating small monetary amounts effectively boost survey participation.

Key Points

To quantify the increase in mailed questionnaire response attributable to monetary incentives across different cash values.
Systematic search and random-effects meta-analysis of 88 randomized controlled trials encompassing 85,671 participants across developed countries, predominantly the USA.
Logistic regression estimated response odds ratios per $0.01 incentive increase, with piecewise logistic regression evaluating response odds across five distinct incentive tiers.
For incentive values up to $0.50, each additional $0.01 increased the odds of response by approximately 1% (pooled OR = 1.012, 95% CI 1.007 to 1.016).
Effects on response above $0.50 decreased monotonically across incremental ranges ($0.50–$0.99, $1.00–$1.99, $2.00–$4.99, and ≥$5.00), remaining statistically significant up to $5.00.

Cite This Study

Phil Edwards (2005) studied this question.

synapsesocial.com/papers/6a890dc103fab2a419a5ecf0 https://doi.org/10.1136/jech.2005.034397

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Implication

Meta-analysis of randomized trials demonstrates increased response to mailed questionnaires with monetary incentives, indicating small monetary amounts effectively boost survey participation.

Meta-analysis of randomised trials of monetary incentives and response to mailed questionnaires

Discussion

Member takes

Implication

Key Points

Cite This Study

Meta-analysis of randomised trials of monetary incentives and response to mailed questionnaires

Discussion

Member takes

Implication

Key Points

Cite This Study

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