Assessing content validity typically involves expert judgment. Here are some common methods:
1. Literature Review: Reviewing existing literature to ensure that the instrument includes all relevant domains identified by previous research. 2. Expert Panels: Consulting with subject matter experts who evaluate whether the instrument covers all necessary content areas. 3. Content Validity Index (CVI): Quantifying content validity by having experts rate each item on its relevance, then calculating a CVI score.
