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Hart, Sara A.; Taylor, Jeanette; Schatschneider, Christopher – Assessment for Effective Intervention, 2013
This study introduces a co-twin control method commonly used in the medical literature but not often within educational research. This method allows for a comparison of twins discordant for an "exposure," approximating alternative outcomes in the counterfactual model. Example analyses use data drawn from the Florida Twin Project on…
Descriptors: Academic Achievement, Teacher Effectiveness, Reading Fluency, Educational Research