The inclusion of ‘then-test’ questions in post-test questionnaires alters post-test responses: a randomized study of bias in health program evaluation
Sandra Nolte, Gerald R. Elsworth, Andrew J. Sinclair, Richard H. OsborneVolume:
21
Language:
english
Pages:
8
DOI:
10.1007/s11136-011-9952-1
Date:
April, 2012
File:
PDF, 221 KB
english, 2012