Contact InformationBack
Date of survey |
: |
August 4 to 17, 2015 |
|
Survey method |
: |
Telephone survey conducted by telephone interviewers |
|
Target population |
: |
Expected to belong to post 80s/90s who are credit card users and have not settled their credits by full payment for at least once before, selected randomly from the database provided by commissioning body |
|
Sampling method |
: |
Telephone numbers were selected randomly from the database provided by commissioning body. When interviewers reached the target respondents successfully, the eligibility of target respondents would be confirmed before the survey started. |
|
Sample size |
: |
509 successful cases, including 389 post-80s and 108 post-90s respondents, which mean 497 post 80s/90s respondents in total |
|
Effective response rate |
: |
73.3% (calculated based on eligible target respondents) |
|
Std. sampling error |
: |
Less than 2.2% (at 95% confidence level, the maximum sampling error of all percentages should be no more than +/-4.4 percentage points) |
| Breakdown of contact information of the survey |
|
Frequency |
Percentage |
Respondents’ ineligibility confirmed |
1,255 |
14.9% |
Fax/ data line |
1 |
<0.1% |
Invalid number |
796 |
9.5% |
Call-forwarding |
144 |
1.7% |
Non-residential number |
23 |
0.3% |
Special technological difficulties |
3 |
<0.1% |
No eligible respondents |
288 |
3.4% |
|
||
Respondents’ eligibility not confirmed |
4,402 |
52.4% |
Line busy |
385 |
4.6% |
No answer |
2,392 |
28.5% |
Answering device |
1,298 |
15.5% |
Call-blocking |
7 |
0.1% |
Language problem |
48 |
0.6% |
Interview terminated before the screening question |
262 |
3.1% |
Others |
10 |
0.1% |
|
|
|
Respondents’ eligibility confirmed, but failed to complete the interview |
2,229 |
26.6% |
Household level refusal |
0 |
0.0% |
Known respondent refusal |
5 |
0.1% |
Appointment date beyond the end of the fieldwork period |
2,199 |
26.2% |
Partial interview |
11 |
0.1% |
Respondent Never Available |
0 |
0.0% |
Dead |
0 |
0.0% |
Physically or Mentally Unable |
0 |
0.0% |
Miscellaneous |
14 |
0.2% |
|
|
|
Successful cases |
509 |
6.1% |
|
|
|
Total |
8,395 |
100.0% |
| Calculation of overall effective response rate |
|
