Study McGrade (1968): study US 1963
- Public
- Infants followed from birth to 8 month, USA, 196?
- Sample
- Respondents
- N = 24
- Non Response
- 46% unattainable.
- Assessment
-
Questionnaire: paper
Mailed questionnaire and peerratings
Correlate
- Authors's Label
- Length of labor
- Our Classification
-
-
- Operationalization
- 1 Short
2 Long