Enclosing a pen to improve response rate to postal questionnaire: an embedded randomised controlled trial [version 1; peer review: 2 approved]
Background: Poor response to questionnaires collecting outcome data in randomised controlled trials (RCTs) can affect the validity of trial results. The aim of this study within a trial (SWAT) was to evaluate the effectiveness of including a pen with a follow-up postal questionnaire on response rate...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
F1000 Research Ltd
2020-06-01
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| Series: | F1000Research |
| Online Access: | https://f1000research.com/articles/9-577/v1 |