What requirement was set forth by Diana v. California State Board?

The requirement established by the Diana v. California State Board case emphasizes that assessments must be conducted in the student's native language. This landmark decision recognized the importance of providing appropriate evaluations for students who are bilingual or have limited English proficiency. It highlighted the need for fair and accurate assessment practices that reflect the linguistic and cultural backgrounds of students, particularly those from minority groups.

The case addressed the issues related to the overrepresentation of Hispanic students in special education programs, showing that many were misdiagnosed due to the use of assessments that did not consider their primary language. By mandating that assessments be conducted in the native language, the ruling aimed to ensure that students could demonstrate their true abilities and needs without the barrier of language impairments affecting the evaluation process. This requirement is essential for equal access to education and fair treatment in school settings.