Open AccessImpact and Costs of Incentives to Reduce Attrition in Online Trials: Two Randomized Controlled Trials
Author(s) -
Zarnie Khadjesari,
Elizabeth Murray,
Eleftheria Kalaitzaki,
Ian R. White,
Jim McCambridge,
Simon G. Thompson,
Paul Wallace,
Christine Godfrey
Publication year - 2011
Publication title -
jmir. journal of medical internet research/journal of medical internet research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.446
H-Index - 142
eISSN - 1439-4456
pISSN - 1438-8871
DOI - 10.2196/jmir.1523
Subject(s) - incentive , voucher , randomized controlled trial , attrition , medicine , psychology , business , surgery , economics , dentistry , microeconomics , accounting