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Table 5 Odds ratios for more extreme responses in telephone interviews

From: A randomized trial of mailed questionnaires versus telephone interviews: Response patterns in a survey

Theme

Number of mode-sensitive* items of total number of items

Median (and maximum)odds ratio among mode-sensitive items

Health behaviour

  

Medicine

0/3

-

Smoking habits

0/1

-

Self assessments

  

Self-esteem

8/9

1.57 (2.57)

Well-being

9/11

1.55 (2.20)

Depression

3/6

2.12 (2.21)

Stress

12/15

1.67 (2.44)

  1. * Items where the hypothesis of identical distributions among telephone respondents and respondents to mailed questionnaires was rejected.
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BMC Medical Research Methodology

ISSN: 1471-2288

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