Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Description
Source of information
Intro 2.2
Imputation and derivation
Imputation
Intro 2.2
Others
Security
Intro 2.2
Notes
SURVEYOR: If child says 7-2-9 tell him/her that is correct. If child does not say 7-2-9, you should say, no, you should say 7-2-9. I said 9-2-7, remember to put them backwards