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
Remarks
Cohort 1: completed IBQ at 3, 6, 9 & 12 months Cohort 2: completed IBQ at 6, 9 & 12 months Cohort 3: completed IBQ at 9 & 12 months all Stability Correlations two-tailed tested
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