Incentive and Reminder Strategies to Improve Response Rate for Internet-Based Physician Surveys: A Randomized Experiment
作者： David A Cook , Christopher M Wittich , Wendlyn L Daniels , Colin P West , Ann M Harris
DOI: 10.2196/JMIR.6318
关键词:
摘要: Background: Most research on how to enhance response rates in physician surveys has been done using paper surveys. Uncertainties remain regarding Internet-based Objective: To evaluate the impact of a low-cost nonmonetary incentive and mail reminders (formal letter postcard) Methods: We executed factorial-design randomized experiment while conducting nationally representative survey. invited 3966 physicians (randomly selected from commercial database all licensed US physicians) via email complete an used 2 randomly assigned messages: one message offered book upon survey completion, whereas other did not mention but was otherwise identical. All nonrespondents received several reminders. Some were further at random receive 1 reminder (either postcard or letter) no reminder. The primary outcome this study rate. Results: Of who invited, 451 (11.4%) responded least question 336 (8.5%) completed entire those book, 345/2973 (11.6%) compared with 106/993 (10.7%) (odds ratio 1.10, 95% CI 0.87-1.38, P=.42). Regarding reminder, 168/1572 recipients, 148/1561 (9.5%) 69/767 (9.0%) email-only recipients (P=.35). rate for receiving letters postcards similar 1.14, 0.91-1.44, P=.26). Conclusions: Offering modest sending improve Further is needed. [J Med Internet Res 2016;18(9):e244]
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