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 assesment methods
Questionnaire and diary

Correlate

Authors's Label

Headache

Our Classification

Distribution

0: N=20; 1:N=38

Operationalization

0: no-migraine headache
1: migraine

Observed Relation with Happiness