Study Schaefer & Bayley (1963): study US 1929
- Public
- Children followed from age 0 to 18, Berkeley, California, USA, 1929-47
- Sample
- Respondents
- N = 54
- Non Response
- 13% drop-outs (7 children and their mothers)
- Assessment
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Multiple assesment methods
Behavioral observation and interviews
Correlate
- Authors's Label
- Speed of movements
- Our Classification
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- Related specification variables
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- Operationalization
- Expert rating on the basis of observation of expressive behavior on a 7- point 'slow - rapid' scale.
12 ratings between month 10-36.
Observed Relation with Happiness
10-12: -.18(ns) -.31(ns) -.26(ns) -.39(05)
13-15: -.05(ns) -.13(ns) -.07(ns) -.29(ns)
18-24: +.06(ns) -.06(ns) +.35(ns) -.02(ns)
27-36: +.10(ns) +.05(ns) +.13(ns) +.02(ns)
10-12: -.02(ns) +.10(ns) +.11(ns) -.07(ns)
13-15: -.05(ns) +.10(ns) +.28(ns) -.01(ns)
18-24: +.01(ns) -.04(ns) +.06(ns) -.27(ns)
27-36: +.02(ns) -.03(ns) -.04(ns) -.27(ns)