LifeCourse A Melbourne Children's Research Initiative

IYDS: Demographics

Relevant LifeCourse Constructs	Year	2002	2003	2004	2006	2007	2008	2010	2012	2014
	Wave	1	2	3	4	5	6	F1	F2	F3
	Age	9-16 years	11-17 years	11-16 years	14-16 years	15-17 years	16-18 years	17-24 years	20-26 years	22-28 years
	N	2884	2884	1909	927	927	926	2872	2871	2870
Benefits and pensions			P:SV-GB ^P
Country of birth			P:SV-CoB ^P P:SV-CoB ^I
Current education			S:IYDS ^I	S:IYDS ^I	S:IYDS ^I	S:IYDS ^I	S:IYDS ^I	S:IYDS ^I	S:IYDS ^I	S:IYDS ^I
Date of birth			S:SV-DoB ^I P:SV-DoB ^P P:SV-DoB ^I
Employment status			P:SV-ES ^P P:SV-ES ^IP		S:MTF ^I	S:MTF ^I	S:MTF ^I	S:MTF ^I	S:IYDS ^I	S:IYDS ^I
Ethnic group			S:SV-E ^I P:SV-E ^P
Financial circumstances								S:IYDS-LE ^I	S:ATP ^I S:IYDS-LE ^I	S:ATP ^I S:IYDS-LE ^I
Gender identity			S:IYDS ^I	S:IYDS ^I	S:IYDS ^I	S:IYDS ^I	S:IYDS ^I	S:IYDS ^I	S:IYDS ^I	S:IYDS ^I
Household composition			P:SV-HC ^P	S:SV-HC ^I	S:SV-HC ^I	S:SV-HC ^I	S:SV-HC ^I	S:SV-HC ^I	S:SV-HC ^I	S:SV-HC ^I
Housing history			S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I
Housing ownership and tenure			P:IYDS ^P					S:IYDS-LE ^I	S:IYDS ^I S:IYDS-LE ^I	S:IYDS ^I S:IYDS-LE ^I
Income			P:SV-I ^Fam						S:ATP ^I	S:ATP ^I
Language spoken			P:SV-LS ^P
Level of educational attainment			S:SV-EA ^M S:SV-EA ^F P:SV-EA ^P						S:SV-EA ^I
Marital or partnership status			P:SV-MS ^P						S:RHCS-R ^I	S:RHCS-R ^I
Number of changes of school			S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I	S:SSDP-TMS ^I
Number of dependant children			P:IYDS ^P						S:ATP ^I	S:ATP ^I
Number of siblings			P:SV-SI ^P
Occupation									S:ABS ^I	S:ABS ^I
Respondent information			P:SV-RI ^I S:SV-RI ^I P:SV-RI ^P	S:SV-RI ^I

Featured measurements

ABS: : Australian Bureau of Statistics-devised
ATP: : Australian Temperament Project-devised measure
IYDS: : International Youth Development Study-devised measure
IYDS-LE: : IYDS devised - Living Expenses Item set
MTF: : Monitoring The Future Study-devised measure
RHCS-R: : RHC Survey devised - Relationships Item set
SSDP-TMS: : SSDP devised - Transitions and Mobility Scale
SV-CoB: : Study Version - Country of Birth indicator
SV-DoB: : Study Version - Date of Birth indicator
SV-EA: : Study Version - Educational Attainment measure
SV-ES: : Study Version - Employment Status measure
SV-E: : Study Version - Ethnicity measure
SV-GB: : Study Version - Government Benefits indicator
SV-HC: : Study Version - Household Composition measure
SV-I: : Study Version - Income indicator
SV-LS: : Study Version - Language Spoken measure
SV-MS: : Study Version - Marital Status indicator
SV-RI: : Study Version - Respondent Information measure
SV-SI: : Study Version - Siblings Information measure

Legend

B: = Biosample collected
BA: = Biosample analysis
G: = Grandparent(s) completed questionnaire
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.