Information on schooling status is collected for all children in the age group 3-16 living in sampled households. Children in the age group 5-16 are tested in basic reading and basic arithmetic. The same test is administered to all children, regardless of enrollment status, age or grade. See this document for an overview of ASER sample sizes over the years. The highest level of the reading test is a Grade 2-level text. In arithmetic, the highest level is a 3-digit by 1-digit division problem, usually taught in Grade 3 or Grade 4. See the process documents page for the ASER reading and math tools.  In addition, basic household information is collected every year. In recent years this has included household size, parental education, and some information on household assets. See domains covered in ASER over time for a summary of domains covered each year. The largest government primary school in each sampled village is visited and information on school infrastructure, enrollment, attendance, teachers, and fund flows is collected. Since 2010, information on some Right to Education (RTE) indicators has also been collected. See domains covered in ASER over time for a summary of school related information collected and see this document for school coverage each year.