Observation-based assessment allows the evaluator to:

Observation-based assessment is an effective method primarily because it enables the evaluator to see the student's performance in various contexts. This approach provides real-time insights into how students interact, engage, and apply their skills across different environments, such as classroom settings, social situations, or during specific activities. Observing students in these varied contexts allows evaluators to capture a holistic view of the student's abilities and challenges, which may not be evident through written tests, interviews, or questionnaires. This type of assessment is particularly beneficial for students who are deaf or hard of hearing, as it takes into account their communication styles and social interactions in natural settings rather than isolated conditions.