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
- Newborn activity
- Our Classification
-
-
- Remarks
- Both variables measured at month 8.
- Operationalization
- Observation of movements of hands and feet by method of Kessen et al. (1961), using motion pictures of four observations on two consecutive days.
1. Activity: Observation of movements
of hands and feet.
2. Reactivity: Difference between
unstimulated activity and activity
after S's forehead was rubbed.
3. Reactivity: Difference between
unstimulated activity and activity
after removal of a nipple.