LifeCourse A Melbourne Children's Research Initiative

Triple B: Speech and language

Relevant LifeCourse Constructs	Year	2008-2013	2008-2013	2008-2013	2008-2013	2008-2013	2009-2014	2012-2015	2017-2022
	Wave	1	2	3	4	5	6	7	8
	Age	Trimester 1	Trimester 2	Trimester 3	Birth	8 weeks postnatal	Infancy	Preschool	Middle childhood
	N	1621	1598	1580	1479	1461	1377	Substudy = 132	1056
Communication skills							P:ASQ-3 ^O	P:ASQ-3 ^O	P:ASQ-3 ^O	P:SSIS ^O
Language development								O:Bayley-III ^O	O:Bayley-III ^O
Speech								O:TOPF ^I O:TOPF ^IP	O:TOPF ^I O:TOPF ^IP

Featured measurements

ASQ-3: : Ages and Stages Questionnaire: Third edition
Bayley-III: : Bayley Scales of Infant and Toddler Development, Third Edition
SSIS: : Social Skills Improvement System
TOPF: : Test of Premorbid Functioning

Legend

B: = Biosample collected
BA: = Biosample analysis
L: = Data linkage
N: = Nurse completed questionnaire
O: = Observation or direct assessment
Of: = Offspring completed questionnaire
P: = Parent/guardian completed questionnaire
Pe: = Peer completed questionnaire
R: = Records abstraction
S: = Self (primary participant) completed questionnaire
T: = Teacher completed questionnaire
X: = Other source
X ^F: = Pertains to father
X ^Fam: = Pertains to family
X ^G: = Pertains to grandparent(s)
X ^I: = Pertains to primary participant
X ^IP: = Pertains to partner
X ^M: = Pertains to mother
X ^O: = Pertains to offspring
X ^P: = Pertains to parent/guardian(s)
X ^Pe: = Pertains to peers
X ^Si: = Pertains to sibling(s)
X ^T: = Pertains to teacher(s)
X ^X: = Pertains to other reportees

Metadata presented by LifeCourse provides a crucial first step in understanding the available data across studies. It does not take the place of detailed study documentation, which should always be consulted during design and analysis.