Description

For sample persons under 5 years old, COUNT3OBJEV reports if the person has ever counted 3 objects correctly.

Child motor and social development variables should be combined with AGE, BIRTHMO (Month of birth), and INTERVWMO (Month of NHIS interview) to provide complete information about the child's developmental progress. For more information on how the child's specific age is relevant to this variable, please see HEADTURNEV.

For related variables, please use the IPUMS NHIS search function and drop-down menus.

Comparability

There are no comparability issues.

Universe

Availability

• 1981

Weights

• 1981 : SAMPWEIGHT