Study Langeveld (1998): study NL 1992 /1
- Public:
- 12-18 aged, chronic headache patients, The Netherlands, 199?
- Sample:
- Respondents:
- N = 64
- Non Response:
- 50%
- Assessment:
-
Multiple methods
Questionnaire and diary
Correlate
- Authors's label
- Headache
- Our Classification
-
-
- Operationalization
- 0: no-migraine headache
1: migraine
Observed Relation with Happiness
0: no-migraine 2,97 78,48
1: migraine 3,00 84,49