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
1.: Mt= 6.43; SDs = 1.80