Following Up Nonrespondents to an Online Weight Management Intervention: Randomized Trial Comparing Mail versus Telephone
Background Attrition, or dropout, is a problem faced by many online health interventions, potentially threatening the inferential value of online randomized controlled trials. Objective In the context of a randomized controlled trial of an online weight management...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
JMIR Publications
2007-06-01
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| Series: | Journal of Medical Internet Research |
| Online Access: | http://www.jmir.org/2007/2/e16/ |