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Correlational findings

Study Bach et al. (1991): study US 1989

Public:
Duchenne Muscular Dystrophy patients and controls, USA, 1985
Sample:
Respondents:
N = 335
Non Response:
Assessment:
Questionnaire: paper
Mailed questionnaire

Correlate

Authors's label
Tracheostomic ventilation
Our Classification
Operationalization
0. Non-invasive method of ventilary support
1. Tracheostomy ventilation

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-SLW-c-sq-n-7-a DMt = -0.4 ns 0.:  Mt= 6,83; SDs = 2,87
1.:  Mt= 6.43; SDs = 1.80