1956 (aged 10 years)
Responding Population
The schools of all eligible study members were contacted.
| Provided information | 4,077 | ||||||
| Cumulative total of deaths | 240 | ||||||
| Cumulative permanent refusals | 1 | ||||||
| Temporarily living abroad | 37 | ||||||
| Cumulative emigrated | 273 | ||||||
| Failure to contact | 734 | ||||||
Data collection
The study member’s teacher and the school’s head teacher completed the postal questionnaire about the type of school, the child’s attainment and behaviour, and parental interest.
Training for data collection
Instructions are given at the head of each form.
Contents
- Type of school
- Type of class
- Achievements and behaviour of the study member
- Parents' interest and home environment