Skip to main content

Table 2 Strategies to improve questionnaire response: Cost-effectiveness

From: The effect of an internet option and single-sided printing format to increase the response rate to a population-based study: a randomized controlled trial

  No internet option & Double-sided Internet option & Double-sided No internet option & Single-sided Internet option & Single-sided
Response rate (in %) 35.5 34.3 35.8 39.4
Nr. of respondents 393 382 387 442
Nr. of eligible participants 1106 1082 1113 1116
Cost per response (£) 6.64 8.59 7.67 8.36
Cost per additional response (£) -- -- 119.19 25.20