Which procedure is commonly used to revise a test?

The choice of teaching the lesson again and retesting is a common procedure for revising a test because it emphasizes reinforcing the learning objectives that may not have been effectively communicated or understood the first time. This approach allows the instructor to provide additional instruction and clarification on the material, ensuring that students have a better grasp of the content before being reassessed. The act of retesting also serves to measure the students' improved understanding and retention of the material, providing a direct correlation between their learning and performance on the assessment.

In contrast, while changing the test format or using a different assessment tool can be helpful in some contexts, they do not necessarily address the students' understanding of the content itself. Additionally, eliminating less important questions might not contribute to a comprehensive evaluation of the students' knowledge and skills, potentially disregarding essential learning objectives. Focusing on reinforcing the lesson through teaching and then retesting ensures that students are better prepared and more capable of demonstrating their understanding.