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Studies

Rozga et al. (2010): study US California 2005

Publication

Author(s):
Rozga, A.; Dapretto, M.; Hutman, T.; Ozonoff, S.; Rogers, S.J; Sigman, M.; Young, G.S.
Title:
Behavioral Profiles of Affected and Unaffected Siblings of Children with Autism: Contribution of Measures of Mother-Infant Interaction and Nonverbal Communication
Source:
Springerlink.com, Published online: 22 June 2010

Investigation

Public:
6 months aged infants, California, United States, 200?
Survey name:
Unnamed study
Sample:
Non-probability purposive-expert sample
Respondents:
N = 167
Non Response:
Assessment:
Behavioural observation
infant behaviour was video recorded and later rated by a coder who was blind to the infants' developmental outcomes

Happiness Measure(s) and Distributional Findings

Full text:
Rating on infants facial affect in 3 situations

1  negative
2  neutral
3  positive

Computation: Average of percentage of positive affect
Classification:
A-CA-mi-rc-th%-101-a
Author's label:
Affect
Remarks:
Average of rated affect in 3 situations: play, still and reunion with mother, computed by WDH team
Page in publication:
291, 293
Observed distribution
Summary Statistics
On original range 0 - 1 On range 0-10
Mean:
51.60 5.16
SD:
16.00 1.60

Correlational Findings

Author's label Subject Description Finding Infant's Autistic Symptomatology Autistic