What type of assessment uses unique test items relevant to a curriculum?

The selection of Curriculum Based Assessment is appropriate because this type of assessment is specifically designed to evaluate student performance based on the content and skills outlined in a particular curriculum. These assessments frequently use unique test items that directly relate to what students are learning in the classroom, ensuring alignment with educational goals. This relevance helps educators to understand how well students are grasping the material taught and allows for immediate feedback that can inform instruction.

In contrast, formative assessments might not always focus solely on the curriculum; they can also encompass a variety of informal assessment techniques used during instruction. Criterion Referenced Tests measure student performance against a fixed set of standards or criteria rather than unique items from the curriculum. Norm Referenced Tests compare a student's performance to a national or normative group rather than assessing based solely on curriculum items. Hence, Curriculum Based Assessment stands out as the type that clearly links assessment to the specific instructional content being taught.