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Table 2 Response rates by mode of administration

From: A randomised trial and economic evaluation of the effect of response mode on response rate, response bias, and item non-response in a survey of doctors

 

All doctors

Simultaneous mixed

Sequential mixed

Online

a) Total

2,702

900

900

902

b) Useable responses (with at least one question answered)

476

175

185

116

c) Refusal (i.e. paper copy returned blank, declined)

11

5

4

2

d) No contact (return to sender)

58

18

15

25

e) No responses

2,133

690

690

753

f) Not eligible (i.e. retired, no longer in clinical practice)

24

12

6

6

Response rate (b/(a-f))

17.77%

19.71%

20.69%

12.95%

Contact rate ((b+c+e))/(a-f))

97.83%

97.97%

98.32%

97.21%