The Age 7 sweep took place during 1965 and aimed to measure the educational, social and physical development of the cohort.
Nearly 300 new participants, who had been born overseas, joined the study after moving to Great Britain.
Health visitors visited the homes of cohort members and conducted interviews with parents (mothers in most cases). Information was collected about household composition, housing, parental occupation, cohort member health, parental health, schooling and parental aspirations for their children’s future.
The Age 7 sweep involved a number of cognitive assessments. Information was also collected from schools about type of school, class sizes, approaches to discipline, attendance, behaviour and ability.
The sweep also included a medical examination where height, weight, vision, hearing, speech, and motor coordination were measured and any other medical issues noted.