About the eighteenth wave of the survey (KHPS2021)

The eighteenth wave of the survey (18th wave)

- Survey Date
The survey was implemented on 31 January 2021.
- Survey Subjects
The 2,281 individuals who were subjects of the KHPS seventeenth wave.
(Valid respondent: 2,244 individuals and 37 individuals who did not respond KHPS the seventeenth wave, but who indicate a wish to cooperate the survey.)
- Survey Method
The survey was implemented by the drop-off pick-up (DOPU) method and on the web (only for those who wish). Due to the spread of the COVID-19, if investigators did not wish to distribute the questionnaires, they were distributed and returned by mail.
- Types of Questionnaires
Two types of questionnaires that differed according to whether there was a spouse or not were used. And another questionnaire for spouse who married with respondent in the past year.
- Collection Rate
Of 2,244 individuals who were surveyed, 2,035 individuals responded the survey, and then the collection rate was 90.7%.
19 respondents who did not respond to the survey last year cooperated the re-survey this year, and submitted the questionnaires.

KHPS Eighteenth Wave Responses

Number of samples 2,281
Completed 2,054
Of which last respondent 2,035
Of which revival 19
Recovery rate* 90.7%
Married 1,512
Single 542
Newlywed 5
Dropout 227

*Recovery rate (= ( (Completed-Revival ) / Completed in last year )×100)

■ eighteenth wave (KHPS2021) Questionnaires PDF

KHPS2004 KHPS2005 KHPS2006 KHPS2007 KHPS2008
KHPS2009 KHPS2010 KHPS2011 KHPS2012 KHPS2013
KHPS2014 KHPS2015 KHPS2016 KHPS2017 KHPS2018
KHPS2019 KHPS2020 KHPS2021 - -
JHPS2009 JHPS2010 JHPS2011 JHPS2012 JHPS2013
JHPS2014 JHPS2015 JHPS2016 JHPS2017 JHPS2018
JHPS2019 JHPS2020 JHPS2021 - -