Hits 1-2 within 2 documents
Positive, negative, and bipolar questions: the effect of question polarity on ratings of text readability [journal article]
Source: Survey Research Methods, 7 (2013) 3. p.181-189
Relative mode effects on data quality in mixed-mode surveys by an instrumental variable [journal article]
Source: Survey Research Methods, 7 (2013) 3. p.157-168