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
In the last week, approximately how many hours did [NAME] spend on homework or s
Imputation and derivation
Imputation
In the last week, approximately how many hours did [NAME] spend on homework or s
Others
Security
In the last week, approximately how many hours did [NAME] spend on homework or s
