What refers to the degree to which the content of a test represents the broader subject area it measures?

The degree to which the content of a test represents the broader subject area it measures is known as content validity. This concept assesses whether the test items are representative of the entire domain the test is intended to cover. For example, if a mathematics test is designed to evaluate a student's proficiency in algebra, the test should include a comprehensive range of algebra topics, ensuring that it accurately reflects students' knowledge and skills in that area.

Content validity is crucial because it ensures that the evaluation is meaningful and fair, allowing educators and psychologists to make informed decisions based on the testing outcomes. A test with high content validity will effectively measure the intended construct, while a test lacking content validity may yield misleading results, making it difficult to assess a student's true abilities in the subject area.