LightSail's Assessment Components

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Learn about the validity and reliability of LightSail's diagnostic and progress monitoring assessments in this guide created by our partner MetaMetrics, a leading educational research organization.

This paper outlines the psychometric data that underlies the Lexile framework and how that framework drives LightSail assessments and personalization. 

The guide is designed to support educators with the research needed to understand if LightSail is right for their districts and classrooms.