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Studies

Lauzon-Guillain et al. (2012): study GB East England 2006

Publication

Author(s):
Lauzon-Guillain, B. de; Acerini, C.L.; Clark, M.; Dunger, D.B.; Hughes, I.A.; Ong, K.K.; Wells, J.C.; Wijndaele, K.
Title:
Breastfeeding and Infant Temperament at Age Three Months
Source:
PloS ONE, www.plosone.org, January 2012, Volume 7, Issue 1, e29326

Investigation

Public:
3 months aged infants, Cambridge, United Kingdom, 2006-2009
Survey name:
Unnamed study
Sample:
Non-probability purposive sample
Respondents:
N = 316
Non Response:
Assessment:
Behavioural observation
Revised Infant Behavior Questionnaire

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
Remarks:
boys: M=4.5 sd=1.0;   girls: M=4.5 sd=1.0;
Page in publication:
2, 3
Observed distribution
Frequencies
1: 0%,   2: 0%,   3: 0%,   4: 0%,   5: 0%,   6: 0%,   7: 0%
Summary Statistics
On original range 1 - 7 On range 0-10
Mean:
4.51 5.83
SD:
1.00 1.67
Full text:
Rating by parents of pleasure in different high stimulus intensity situations, such as:

During a peek-a-boo game, how often did the baby smile?
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 Revised Infant Behavior Questionnaire
Classification:
A-CA-cw-rdf-v-7-ab
Author's label:
High Pleasure
Remarks:
boys: M=5.1 sd=1.0;   girls: M=5.0 sd=0.9;
Page in publication:
2, 3
Observed distribution
Frequencies
1: 0%,   2: 0%,   3: 0%,   4: 0%,   5: 0%,   6: 0%,   7: 0%
Summary Statistics
On original range 1 - 7 On range 0-10
Mean:
5.05 6.75
SD:
0.95 1.58
Full text:
Rating by parents of pleasure in different low stimulus intensity situations, such as:

When playing quietly with one of his/her favorite toys, how often did the baby show pleasure?
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 Revised Infant Behavior Questionnaire
Classification:
A-CA-cw-rdf-v-7-ba
Author's label:
Low Pleasure
Remarks:
boys: M=5.1 sd=0.9;   girls: M=5.1 sd=0.8;
Page in publication:
2, 3
Observed distribution
Frequencies
1: 0%,   2: 0%,   3: 0%,   4: 0%,   5: 0%,   6: 0%,   7: 0%
Summary Statistics
On original range 1 - 7 On range 0-10
Mean:
5.10 6.83
SD:
0.85 1.42
Full text:
Rating by mother of infants affective reactions

During the last week how often did your child show
a: pleasure in high intensity situations such as peek-a boo game
b: pleasure in low intensity situations, such as playing quietly with a favorite toy
c: smile in sitiations such as being undressed
d: distress to limitations
e: fear
f: sadness
Each rated:
1 never
2 very rarely
3 less than half the time
4 half the time
5 more than half the time
6 almost always
7 always

Computation: (a+b+c) - (d+e+f)

Items part of the Revised Infant Behavior Questionnaire IBQ
Classification:
A-AB-cw-rdf-v-7-a
Remarks:
Affect Balance computed by WDH team:
Formula-fed: 7.1, Mixed-fed:  5.7, Breast-fed:  5.4
Page in publication:
3, 4
Observed distribution
Frequencies
1: 0%,   2: 0%,   3: 0%,   4: 0%,   5: 0%,   6: 0%,   7: 0%
Summary Statistics
On original range -6 - 6 On range 0-10
Mean:
5.81

Correlational Findings

Author's label Subject Description Finding Mode of Infant Feeding Breastfeeding
Current nutrition
Gender Sex (male vs female)