Classroom Effectiveness Indices

A Classroom Effectiveness Index (CEI) measures the achievement of a teacher's students when compared to other students in the district with the same characteristics and the same previous level of achievement. CEIs measure the amount of academic progress students make after receiving instruction from a teacher for a full term. A high CEI indicates that a teacher's students overall performed better on the assessment of interest than did similar students across the district. Because they are relative measures, the CEIs do not correlate to passing rates, which are absolute measures.

The "Frequently Asked Questions" and a one-page conceptual overview of Dallas ISD's Classroom Effectiveness Indices provide additional information.