A subset of data from the Children of the National Longitudinal Study of Youth measuring changes in the reading subtest of the Peabody Individual Achievement Test (PIAT) in a sample of 89 African-American children across three waves around the ages of 6, 8, and 10.
Format
A person-period data frame with 267 rows and 5 columns:
- id
- Participant ID. 
- wave
- Wave of measurement. 
- age_group
- Expected age on each measurement occasion. 
- age
- Age in years at time of measurement. 
- reading_score
- Reading score on the reading subtest of the Peabody Individual Achievement Test (PIAT). 
Source
US Bureau of Labor and Statistics. National Longitudinal Survey of Youth (Children of the NLSY). https://www.bls.gov/nls/nlsy79-children.htm