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The families in the Child Cohort were first interviewed when the study children were 9-years-old. Wave 1 had two data collection components: school and home. Participants were recruited through the schools. Schools were selected at random then age-eligible children and their families were invited to participate, with a maximum of 40 children in each participating school. There were approximately 8,500 study children in total. Within the school, children completed academic achievement tests, and teachers and Principals self-completed questionnaires. Teachers completed one questionnaire about themselves and one for each study child.
In Wave 2, when the study children had turned 13-years-old, they and their parents/guardians were re-interviewed in the home. The child's height and weight, and parental weight, were measured again. The child also completed a set of cognitive/academic assesments in the home which were administered by the interviewer. Postal questionnaires were sent to the Principal of the child's school and to a non-resident parent (where relevant).
Where are we now?
The first wave of data collection for the Child Cohort (9- Years) was completed in 2008. The Study Team have lodged an anonymised dataset from the first wave of the 9-year cohort with the Irish Social Sciences Data Archive . Wave 2 fieldwork, when the children reached 13-years of age, has recently concluded.
The qualitative data from Wave 1 has been lodged with the Irish Qualitative Data Archive.
Links to published reports on the Child Cohort can be found on the Publications page.