Chapter 9 Three studies
This section compares child development between samples from three different studies:
- SMOCC, a representative sample of Dutch children (9.1)
- POPS, a cohort of all Dutch preterms in 1983 (9.2)
- TOGO, a set of medical records from preventive health service in Togo (9.3)
- A summary of the main findings (9.4)
Each study used the same measurement instrument, the DDI (see Section 4.1). The section compares D-scores between studies.