1Cademy - Results for the SWD meta-analysis study

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Results for the SWD meta-analysis study

On average, the reading achievement gap is 1.17 standard deviations-SWDs performed more poorly than their peers
The average gap is 3.3 years of reading growth
Unable to do a meta-analysis by specific disability category because there wasn’t enough data
Students with learning disabilities performed 1.44 SDs (approximately 4 years) below other students in reading
The reading gap with low-incidence disabilities is a little more than LD, with approximately 4.3 years
The overall gap was the smallest (0.62 SDs or 1.7 years) when all of the disabilities were grouped together
Only statistically significant gap size-students with high incidence disabilities and other students and all disabilities versus other students
No statistically significant difference depending on the school level (elementary versus secondary)
No statistically significant difference based on whether it was conducted before or after the no child left behind act
No statistically significant difference based on if the test was high or low stakes

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Updated 2021-01-10

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