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Studies

Rothbart (1981): study US Oregon 1976

Publication

Author(s):
Rothbart, M.K.
Title:
Measurement of Temperament in Infancy
Source:
Child development, 1981, 52, 560-578

Investigation

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

Happiness Measure(s) and Distributional Findings

Full text:
Rating by parents of smiling and laughter in 15 different situations, such as

During the last week, when being undressed, how often did your child smile or laugh?
1  never
2  very rarely
3  less than half the time
4  about half the time
5  more than half the time
6  almost always
7  always

Full list of situations not reported

Part of Rothbart Infant Behavior Questionnaire IBQ
Classification:
A-CA-cw-rdf-v-7-a
Author's label:
Smiling and Laughter
Page in publication:
573, 574, 575
Error estimates:
Correlations of ratings across 15 situations: at 3 months: mr=+.57 (range: 0.40 - 0.75) at 6 months: mr=+.49 (range: 0.29 - 0.62) at 9 months: mr=+.46 (range: 0.28 - 0.64) at 12 months: mr=+.51 (range: 0.27 - 0.74) Reliability of the 15 items: at 3 months: 0.85 at 6 months: 0.77 at 9 months: 0.73 at 12 months: 0.80

Correlational Findings

Author's label Subject Description Finding Activity Level Active Fear Current affective life
Anxious
Distress to Limitations Tense
Irritable
Soothability Calm
Current coping
Duration of Orienting Interested Stability A-CA by A-CA