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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 =
Non Response
at T0: 4%
Assessment
Questionnaire: Paper & Pencil Interview (PAPI)

Correlate

Authors's Label
Quality of Life at different times - interrate correlations
Our Classification
Remarks
Satisfaction assessed at: - T0: baseline - T1: one week after Week 0 completion - T2: two weeks after Week 0 - T3: three weeks after Week 0 - T4: 26 weeks after Week 0
Operationalization
Parent's rating of child's happiness

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-SLW-cw-sq-ol-11-a r = +.33 p < .000 T0 happiness by T1 happiness O-SLW-cw-sq-ol-11-a r = +.34 p < .000 T0 happiness by T2 happiness O-SLW-cw-sq-ol-11-a r = +.31 p < .000 T0 happiness by T3 happiness O-SLW-cw-sq-ol-11-a r = +.31 p < .000 T0 happiness by T4 happiness