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
- Physical functioning
- Our Classification
-
-
- Operationalization
- Self report on questionaire. Questions not reported.