What question did this study set out to answer?

To determine whether highlighting a monetary lottery incentive in an email subject line and altering the day of email delivery improves response rates among primary care physicians in a web-based study.

February 8, 2018Journal of Medical Internet ResearchOpen Access

Effect of Recruitment Methods on Response Rate in a Web-Based Study for Primary Care Physicians: Factorial Randomized Controlled Trial

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Authors

RSRyuhei SoOkayama Psychiatric Medical Center KSKiyomi ShinoharaKyoto University TATakuya AokiOtsuka (Japan)

Discussion

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Implication

Factorial randomized trial finds email incentive notices and delivery days do not alter response rates in primary care physicians, suggesting minor tweaks fail to boost survey engagement.

Key Points

To determine whether highlighting a monetary lottery incentive in an email subject line and altering the day of email delivery improves response rates among primary care physicians in a web-based study.
Conducted a 2×2 factorial randomized controlled trial assigning 2,000 primary care physicians from the Japan Primary Care Association to four email recruitment conditions.
Interventions compared subject lines emphasizing an Amazon gift card lottery (~$30 USD) versus no emphasis, combined with Tuesday versus Friday delivery.
Analyzed data from 1,943 physicians with valid email addresses for the primary outcome of completing the questionnaire's first page between January 17 and February 8, 2017.
The overall survey response rate was 6.3% (123/1,943).
Emphasizing the lottery incentive in the subject line did not significantly improve response rates (RR 1.12, 95% CI 0.80 to 1.58; RD 0.7%, 95% CI -1.5% to 2.9%).
Delivering invitation emails on Tuesday versus Friday showed no significant difference in response rates (RR 0.98, 95% CI 0.70 to 1.38; RD -0.1%, 95% CI -2.3% to 2.1%).

Cite This Study

So et al. (2018) studied this question.

synapsesocial.com/papers/6a105e5fe1a472cb5efcc7c2 https://doi.org/10.2196/jmir.8561

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Implication

Factorial randomized trial finds email incentive notices and delivery days do not alter response rates in primary care physicians, suggesting minor tweaks fail to boost survey engagement.

Effect of Recruitment Methods on Response Rate in a Web-Based Study for Primary Care Physicians: Factorial Randomized Controlled Trial

Discussion

Member takes

Implication

Key Points

Cite This Study

Effect of Recruitment Methods on Response Rate in a Web-Based Study for Primary Care Physicians: Factorial Randomized Controlled Trial

Discussion

Member takes

Implication

Key Points

Cite This Study

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