Parent-to-child ratio of NAEP test-taking population, from birth to test-taking year, selected years
|Year of test||Average parent–child ratio in families of fourth-grade test-taking population, birth to 9 years old||Black–white ratio||Average annual change in black–white ratio from previous period||Average parent–child ratio in families of eighth-grade test-taking population, birth to 13 years old||Black–white ratio||Average annual change in black–white ratio from previous period|
Note: Data for eighth-graders in 1973 are average from 1 year of age, not birth. Estimates for years when data are not available are interpolated from prior and successive years.
Source: Author's calculations based on Wething (2013)
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