What is the fundamental principle when assessing students who are ELLs?

A. Norm-referenced tests are inherently biased against ELLs and should be avoided.

B. Assessments must only be done in the student's native language, no matter what their level of language ability.

C. Assure that assessment materials and procedures used are not influenced by the student's ability to understand and use English.

D. To use curriculum-based assessments, as they are more likely to reflect actual skill.