KINU Unification Survey
Since 2014, the Korea Institute for National Unification (KINU) has conducted the KINU Unification Survey, an annual public opinion survey program.
- The survey has been administered once or twice each year, enabling longitudinal analysis of public views on unification, North Korea, inter-Korean and North Korea policy, perceptions of surrounding powers, political attitudes, and security awareness.
- The survey employs face-to-face interviews with approximately 1,000 respondents per wave. The sample is drawn using stratified proportional allocation by gender, region, and age based on official resident registration population statistics, followed by random selection. The survey achieves a 95% confidence level with a maximum margin of sampling error of ±3.1 percentage points.
- For research transparency and secondary analysis, SPSS datasets, questionnaires, and codebooks (both Korean and English) are made publicly available.
| No. | Year | Period |
|---|---|---|
| 1 | 2014 | From September 22 to October 6 |
| 2 | 2015 | From July 27 to August 14 |
| 3 | 2016 | From June 2 to June 24 |
| 4 | 2017 | From March 21 to April 14 |
| 5 | 2018 | From April 5 to April 25 |
| 6 | 2019 1st wave | From April 5 to April 25 |
| 7 | 2019 2nd wave | From September 7 to October 8 |
| 8 | 2020 1st wave | From May 20 to June 10 |
| 9 | 2020 2nd wave | From November 10 to December 3 |
| 10 | 2021 1st wave | From April 26 to May 18 |
| 11 | 2021 2nd wave | From October 21 to November 22 |
| 12 | 2022 | From April 6 to May 2 |
| 13 | 2023 | From April 15 to May 10 |