|
 Objectives
| 1. |
The second pilot survey was conducted in 81 survey points in six regional blocks all over Japan. |
| 2. |
Unlike the first survey, quota by sex, gender, and regional attributes (residential area, commercial strip, agricultural area etc.) was not used in the second pilot survey. Instead, 1,200 men and women over 18 years of age were surveyed, chosen by systematic sampling in each survey point. |
| 3. |
The second pilot survey examined whether the response rates differed according to the timing of giving an incentive (a book coupon). For this purpose, survey points were divided into where the incentive was prepaid or where it was promised. |
| 4. |
The questions contained in the second pilot survey were basically identical to those in the first pilot survey. However, some questions were replaced with those in the first survey. |
| 5. |
The second pilot survey, as well as the first pilot survey, used both interview and placement (self-administered) method for each respondent. However, the administrative order (i.e., whether to conduct the face-to-face interview before or after the questionnaire) in the second survey was determined by the interviewer/administrator depending on the circumstances of each case. |
| 6. |
There were two versions of placement questionnaire: Version A and Version B, which had different choices, scales, and/or type of responses. While Version A mainly used choices and scales compatible with GSS, Version B mainly used choices and scales which were frequently adopted by opinion polls in Japan. |
Sampling
| Sample area |
Nationwide |
| Sample population |
Men and women over 18 years of age living in Japan |
| Sample size |
1,200 |
| Sampling method |
Two-stage stratified random sampling; stratified by regional block and population size |
Two Versions of Self-administered Questionnaire
Both interview and placement (self-administered) method was used for each respondent in the second pilot survey. The respondents were randomly distributed either of the two versions of the self-administered questionnaire.
Order of Administration
The administrative order (i.e., whether to conduct the face-to-face interview before or after the questionnaire) was randomly determined.
Response Rates
| No. of respondents contacted |
1,277(original sample:1,200, supplement:77;out of all the respondents contacted, there were 43 "change of address", 15 "address unknown", and 4 "death") |
| No. of valid responses |
790 |
| Response rate |
65.0%(excluding "change of address", "address unknown", and "death") |
| Response rate(the incentive was prepaid) |
72.2% |
| Response rate(the incentive was promised) |
60.6% |
Responses by Order of Administration
| No. of Responses(%) |
| Interview first, followed by self-administered questionnaire |
587(74.3) |
| Self-administered questionnaire first, followed by interview |
152(19.2) |
| Order of administration not recorded |
51(6.5) |
Responses by Questionnaire Version
| No. of Responses(%) |
| Version A |
Version B |
| 410(51.9%) |
380(48.1%) |
Responses by Questionnaire Version, Sex and Age
Form A
| Response Rates(%) |
| Age |
18-19 |
20-29 |
30-39 |
40-49 |
50-59 |
60-69 |
70-79 |
80+ |
TTL |
| Male |
3(1.6) |
21(10.9) |
27(14.0) |
42(21.8) |
34(17.6) |
39(20.2) |
24(12.4) |
3(1.6) |
193(100.0) |
| Female |
3(1.4) |
23(10.6) |
27(12.4) |
44(20.3) |
49(22.6) |
37(17.1) |
26(12.0) |
8(3.7) |
217(100.0) |
| TTL |
6(1.5) |
44(10.7) |
54(13.2) |
86(21.0) |
83(20.2) |
76(18.5) |
50(12.2) |
11(2.7) |
410(100.0) |
Form B
| Response Rates(%) |
| Age |
18-19 |
20-29 |
30-39 |
40-49 |
50-59 |
60-69 |
70-79 |
80+ |
TTL |
| Male |
6(3.5) |
17(9.9) |
16(9.3) |
29(16.9) |
37(21.5) |
40(23.3) |
24(14.0) |
3(1.7) |
172(100.0) |
| Female |
2(1.0) |
28(13.5) |
35(16.8) |
46(22.1) |
48(23.1) |
31(14.9) |
12(5.8) |
6(2.9) |
208(100.0) |
| TTL |
8(2.1) |
45(11.8) |
51(13.4) |
75(19.7) |
85(22.4) |
71(18.7) |
36(9.5) |
9(2.4) |
380(100.0) |
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