Issues Related to the Reliability of School Accountability Scores

This paper explores the issues of reliability from the RILS 2001 conference, including the relationship between test score reliabilities and reliability of school accountability decisions, statistics for comparing accountability reliabilities, influence of calculation methods, and factors that affect accountability reliabilities. It is intended for people familiar with the terms used in assessment and reliability, but who might not be familiar with the issues of reliability when used in the context of accountability. Includes many tables for detailed examination and reference.