Frequency

Percentage

Respondents’ ineligibility confirmed

932

4.6%

Fax / data line

183

0.9%

Invalid number

443

2.2%

Call-forwarding / mobile / pager number

23

0.1%

Non-residence / not p ersonal mobile

244

1.2%

Special technological difficulties

8

<0.1%

No eligible respondents

31

0.2%

Respondents’ ineligibility not confirmed

17,911

88.1%

Line busy

188

0.9%

No answer

8,798

43.3%

Answering device

2,351

11.6%

Call-blocking

26

0.1%

Language problem

234

1.2%

Interview terminated before the screening question

94

0.5%

Others

2

<0.1%

Appointment date beyond the end of the fieldwork period – Respondents’ ineligibility not confirmed

6,218

30.6%

Respondents’ eligibility confirmed, but failed to complete the interview

493

2.4%

Household-level refusal

3

<0.1%

Known respondent refusal

0

0.0%

Appointment date beyond the end of the fieldwork period – Respondents’ eligibility confirmed

402

2.0%

Partial interview

75

0.4%

Miscellaneous

13

0.1%

Successful cases

1,000

4.9%

Total

20,336

100.0%

Effective response rate

=

Successful cases/(Successful cases + Incomplete cases * + Refusal cases by eligible respondents ^ + Projected refusal cases byeligible respondents ^#)

=

1,000/(1,000 +(75 + 94)+(3 + 0)+ 512)

=

59.4%