This guide--written for school administrators, teachers, counselors, parents, and the community--describes educational tests and measurements and test-related statistics. While specifically intended to help readers interpret the tests administered in the Los Angeles (California) Unified School District, this information may also be used to…

Available test score evidence does not support the common claim that student achievement has declined. On the other hand, the existing evidence cannot be used to prove that student achievement has risen. This paper offers reasons why student achievement in the past cannot be compared accurately with student achievement today: (1) tests, curricula,…