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Correlational findings

Study Langeveld (1998): study NL 1993

Public:
12-18 aged migraine patients and controls, followed 26 months, The Netherlands, 199?
Sample:
Respondents:
N = 159
Non Response:
at T0: 4%
Assessment:
Questionnaire: paper

Correlate

Authors's label
Presence of headache prior to completion of QLH-Y
Our Classification
Operationalization
Satisfaction with Life in general

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-SLW-cw-sq-ol-11-a = .00 ns T0 headache by T0 happiness O-SLW-cw-sq-ol-11-a = .00 ns T0 headache by T1 happiness O-SLW-cw-sq-ol-11-a = .00 ns T0 headache to T2 happiness O-SLW-cw-sq-ol-11-a = .00 ns T0 headache by T3 happiness O-SLW-cw-sq-ol-11-a = .03 ns T0 headache by T4 happiness

Happiness assessed at:
- T0: baseline
- T1: one week after T0
- T2: two weeks after Week 0
- T3: three weeks after Week 0
- T4: 26 weeks after Week 0