Year 2011-2012 2011-2012 2011-2012 2013-2014 2014-2015 2018-2020
Wave 1 2 3 4a 4 5 6
Age 19 weeks gest 26 weeks gest 36 weeks gest birth 12 months 2 years 6-7 years
Behavioural problems (general) P:SDV M C P:SDV M C  
Special health care needs screener P:CSHCN P:CSHCN P:CSHCN
Attention/hyperactivity problems     P:ADHD-RS-V
Conduct problems     P:SDQ
Developmental Evaluation Screener     P:SCQ

Featured measurements

ADHD-RS: ADHD Rating Scale IV, parent version
CSHCN: Children with Special Health Care Needs screener
SCQ: Social Communication Questionnaire
SDQ: Strengths and Difficulties Questionnaire
SDV: Study Devised Variable


A = Administration report abstraction
C = Index child report (reporting on others)
L = Linkage (to other databases)
M = Medical records data abstraction
O = Observation/direct assessment
N = Nurse report
P = Parent/primary caregiver report
Pe = Peer report
S = Self report
T = Teacher report
X = Undefined
X BF = Pertaining to biological father
X BM = Pertaining to biological mother
C = Pertaining to index child
X F = Pertaining to father
X Fam = Pertaining to family
X G = Pertaining to grandparent(s)
X M = Pertaining to mother
X P = Pertaining to parent(s)
X Pa = Pertaining to partner
X Pe = Pertaining to peers
X Pr = Pertaining to primary caregiver
X Si = Pertaining to sibling(s)