Educational achievement was collapsed from six categories (8th grade or less; 9th–12th grade but no diploma; high school graduate or equivalent, such as GED; some college or technical school; bachelor's degree; master's or professional degree) to four (high school or less; some college; ...
Educational achievement was collapsed from six categories (8th grade or less; 9th–12th grade but no diploma; high school graduate or equivalent, such as GED; some college or technical school; bachelor's degree; master's or professional degree) to four (high school or less; some college; ...