| Co-investigators | Pepijn VanHouwelingen | |
| University | Netherlands Institute for Social Research, e-mail: p.van.houwelingen@scp.nl | |
| Respondents | ||
| Case number | Item codes | Surveys |
| 1 | O-HL-c-sq-v-4-p | World Values Surveys 1980, 1990, 1995, 2000, 2005 Japanese version of standard 4-step happiness item |
| 2 | O-SLu-c-sq-v-4-f | Life-in-Nation surveys 1958-1963 |
| 3 | O-SLu-u-sq-v-4-h | Japanese Character surveys 1993, 1998, 2003, 2008 |
| 4 | O-SLu-c-sq-v-4-e | Life-in-Nation surveys 1970-1991 |
| 5 | O-SLW-c-sq-v-4-e | Life-in-Nation surveys 1992-2010 |
| 6 | O-SLW-c-sq-v-5-fc | Leisure Development Center, International survey 1979 |
| 7 | O-SLW-u-sq-v-5-g | Lifestyle preference survey 1978-1999, 2002-2008 |
| 8 | O-SLW-u-sq-v-5-h | Lifestyle preference survey 2001 |
| 9 | O-SLW-c-sq-v-5-r | East Asia Value Survey 2002-2005 |
| Questionnaire | japanese5questionnaire | |
| Data file | japanese5data | |
| Remarks | item O-SLu-u-sq-v-4-e (used in Life-in-Nation surveys 1964-1969) not included since only time reference differs from case 4 | |