The data set included additional measures of activity and nutrition of the preschool child as well as measures of the activity of an older sibling and mother. The data were gathered in the homes and schools of the children and included both self-report and direct measurement of activity and nutrition. Additional assessments of activity, lipid fractions and apolipoproteins, and Type A Behavior Patterns and Life Stress in the preschool child, i.e., target child , an older sibling and the children's mother added considerably to the complexity and value of the data set permitting additional questions regarding the development of activity, the influences of siblings and parents on this development, and the relationship to CVD risk status and Type A Behavior Patterns.