Child Development Supplement (CDS)
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Original CDS (CDS I-III, 1997-2007)[edit]
CDS began in 1997 with 3,653 children aged 0 to 12 years. Up to two children were randomly sampled from eligible families, enabling sibling comparisons. Children under 18 years and their caregivers were re-interviewed in up to two additional waves in 2002 (CDS-II) and 2007 (CDS-III). At each wave, primary caregivers of children (usually a parent or other relative) and older children themselves provided detailed information about children’s well-being and development in their family, school, and neighborhood context. See the text box below for topics and domains covered in CDS interviews and assessments.