Achievement gaps rooted in socioeconomic status exist when children enter kindergarten: Achievement at the beginning of kindergarten, second through fifth socioeconomic quintiles as compared with lowest quintile

 Variables (measured in standard deviations ) Reading Math Persistence in completing tasks (as reported by teachers)
Low-middle SES 0.167 0.153 0.116
Middle SES 0.345 0.372 0.177
High-middle SES 0.555 0.539 0.346
High SES 0.784 0.761 0.422

Note: SES refers to socioeconomic status. Bars show the adjusted standard deviation score for each socioeconomic group, relative to low-SES children.

Source: EPI analysis of ECLS-K, Kindergarten Class of 2010–2011 (National Center for Education Statistics)

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