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
-
Multiple assesment methods
Behavioral observation and interviews
Correlate
- Authors's Label
- Activity
- Our Classification
-
-
- Related specification variables
-
-
- Operationalization
- Expert rating on the basis of observation of expressive behavior on a bipolar 7-point 'inactive - vigorous' scale. 12 ratings between month 10-36 of age.
Observed Relation with Happiness
10-12: -.08(ns) -.18(ns) -.06(ns) -.27(ns)
13-15: -.02(ns) +.03(ns) -.01(ns) -.17(ns)
18-24: +.19(ns) +.24(ns) +.65(05) +.29(ns)
27-36: +.25(ns) +.07(ns) +.21(ns) +.14(ns)
10-12: +.03(ns) +.11(ns) +.07(ns) -.07(ns)
13-15: +.01(ns) +.09(ns) +.29(ns) +.10(ns)
18-24: +.07(ns) +.12(ns) +.34(ns) +.01(ns)
27-36: +.06(ns) +.02(ns) +.20(ns) +.23(ns)