Figure D2

Distribution of standardized scale and theta scores in reading, by year

Scale scores, 1998 (left) and 2010 (right)

Scale scores, 1998 (left) and 2010 (right)

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Theta scores, 1998 (left) and 2010 (right)

Theta scores, 1998 (left) and 2010 (right)

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Source: ECLS-K, kindergarten classes of 1998–1999 and 2010–2011 (National Center for Education Statistics)

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