Understanding Disproportionality in Special Education:
A Deep Dive into the Root Causes that Create Misrepresentation

What causes disproportionality in Special Education?

In this 55-minute session, Dr. Samuel Ortiz — Chief Clinical Officer at Marker Learning — unpacks the complex and often misunderstood issue of disproportionality in special education.

Drawing on decades of research and frontline experience, Dr. Ortiz traces the historical roots of systemic bias in assessment, placement, and instruction — from landmark legal cases like Diana v. California and Larry P. v. Riles to the evolving requirements of IDEA.

Dr. Ortiz explores how cultural and linguistic differences, inequitable instructional practices, and noncompliance with federal safeguards continue to shape identification patterns for multilingual and minority students. He offers practical guidance on implementing culturally responsive, data-driven assessment and intervention practices that honor both the law and the learner.

Whether you’re a school psychologist, administrator, or educator striving for equity, this webinar will deepen your understanding of the systemic roots of disproportionality — and empower you to take meaningful steps toward fairer, more accurate special education practices.

Fill out the form to the left to access the full recording and explore what the future of special education could look like!