print

Correlational findings

Study Rothbart (1981): study US Oregon 1976

Public:
3-12 months aged infants, Oregon, United States, 197?
Survey name:
Unnamed study
Sample:
Respondents:
N = 215
Non Response:
41%
Assessment:
Behavioural observation

Correlate

Authors's label
Stability
Our Classification
Operationalization
Intercorrelation of 15 ratings of happy appearance (smiling and laughter) at different months of age

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks A-CA-cw-rdf-v-7-a mr = +.70 p < .001 COHORT 1
3-6 months:  r=+.60
3-9 months:  r=+.63
3-12 months: r=+.57
6-9 months:  r=+.81
6-12 months: r=+.78
9-12 months: r=+.80
A-CA-cw-rdf-v-7-a mr = +.72 p < .001 COHORT 2
6-9 months:  r=+.73
6-12 months: r=+.66
9-12 months: r=+.78
A-CA-cw-rdf-v-7-a r = +.58 p < .001 COHORT 3