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Participant left blank (999)
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Not assessed (1000)
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Less than 1st grade (0)
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1st, 2nd, 3rd, 4th grade (1)
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5th or 6th grade (2)
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7th or 8th grade (3)
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12th grade NO Diploma (7)
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High school graduate, diploma or GED (8)
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Some college credit but less than one year (9)
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One or more years of college, no degree (10)
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Completed occupational, technical or vocational program (11)
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Associate (2-year) college degree (12)
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Bachelor's degree (13)
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Master's degree (14)
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Professional degree (15)
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Doctorate degree (16)