Comparison of Open and Closed Questionnaire Formats in Obtaining Demographic Information From Canadian General Internists

L Griffith · 1999
DOI: 10.1016/s0895-4356(99)00106-7

Excerpts

The proportion of respondents with no missing data for all 16 questions was 44.7% for open-ended and 67.0% for closed-ended formats (P < 0.001).

— Page 997

Reference

L Griffith “Comparison of Open and Closed Questionnaire Formats in Obtaining Demographic Information From Canadian General Internists” (1999) DOI: 10.1016/s0895-4356(99)00106-7

@Article{griffith1999,
  title = {Comparison of Open and Closed Questionnaire Formats in Obtaining Demographic Information From Canadian General Internists},
  volume = {52},
  issn = {0895-4356},
  url = {http://dx.doi.org/10.1016/s0895-4356(99)00106-7},
  doi = {10.1016/s0895-4356(99)00106-7},
  number = {10},
  journal = {Journal of Clinical Epidemiology},
  publisher = {Elsevier BV},
  author = {Griffith, L},
  year = {1999},
  month = {oct},
  pages = {997–1005}
}