How often must a student's IEP be reviewed to ensure it remains effective?

The correct choice emphasizes that a student’s Individualized Education Program (IEP) must be reviewed at least once a year to assess its effectiveness and make necessary adjustments. This annual review is crucial as it allows educators, parents, and specialists to evaluate the student’s progress toward their goals and ensure that the educational interventions remain suitable for their evolving needs.

Regular reviews also help to incorporate any new assessments or data, providing an opportunity to revise the goals, services, and supports as needed to optimize the student's educational experience. While IEPs can be reviewed more frequently if needed, the annual requirement sets a clear expectation for regular monitoring and updating, thus maintaining the relevance and efficacy of the individualized plan for each student.