What do achievement tests measure?

Achievement tests measure the skills a child has acquired in specific subject areas, such as reading, mathematics, and writing. These assessments are designed to evaluate the knowledge and competencies that students have gained through instruction and experience in their educational environment. By focusing on what a child has learned and can demonstrate, achievement tests provide valuable insights into a child's academic performance and understanding of content.

Achievement tests are distinct from other types of assessments, such as readiness tests or emotional intelligence assessments, because they specifically focus on academic knowledge and skill acquisition rather than evaluating a child's capabilities in other areas. For instance, while readiness tests determine if a child is prepared for a particular educational program, achievement tests assess the knowledge already attained. Similarly, emotional intelligence assessments gauge interpersonal skills and self-awareness, which are not the focus of achievement tests. Lastly, physical abilities are not measured by achievement tests, as these evaluations center on academic proficiencies rather than physical performance. Thus, option B accurately describes the primary function of achievement tests.