Certified Prevention Specialist CPS Practice Exam 2026 - Free CPS Practice Questions and Study Guide

Administering pretests and posttests is an effective method for demonstrating positive change after a lesson because it provides a quantitative measure of student learning and understanding. By assessing students' knowledge or skills before the lesson and then again afterward, educators can compare the results to see how much improvement has occurred. This method directly links the lesson content with students' performance, allowing for clear evidence of the impact of the instruction.

In contrast, while asking students to evaluate the lesson could give insight into their perceptions and engagement, it does not provide hard data on learning outcomes. Observing the lesson from the principal's perspective may yield feedback on teaching practices, but it does not specifically measure student learning. Requesting teacher feedback focuses on the instructor's perspective, which, while valuable, does not capture the effectiveness of the lesson in terms of student achievement. Thus, pretests and posttests stand out as the most substantial means to measure effective learning and demonstrate positive change.