In educational settings, achievement tests are primarily used to:

Achievement tests are primarily designed to assess the skills and knowledge that students have acquired through structured educational instruction, making option B the most accurate choice. These tests provide valuable insights into a student's understanding and mastery of specific subjects or skills, reflecting how well they have learned the material that has been taught within a curriculum.

In educational contexts, achievement tests serve as a means to evaluate educational outcomes, guide instruction, and identify areas where students may need additional support. They are often aligned with state or national standards and are typically used for purposes such as tracking academic progress, informing teaching practices, and making decisions about curriculum effectiveness.

The other options are related to different kinds of assessments. For example, measuring intelligence levels pertains to aptitude tests, while social skills development is typically assessed through behavioral observations or social-emotional assessments. Emotional resilience is also not the focus of achievement tests, as it relates more to psychological assessments rather than academic performance. Thus, the emphasis on assessing skills attained through planned instruction solidifies why option B is the correct choice.