This inventory provides a systematic framework for educators to diagnose reading difficulties and determine the appropriate instructional levels for students. Eldon E. Ekwall, a specialist in reading education, developed this diagnostic tool to bridge the gap between standardized testing and classroom-based intervention. The text utilizes a structured, data-driven approach to evaluate word recognition, comprehension, and phonics skills in a clinical or classroom setting.

This text is regarded as a foundational diagnostic instrument within the field of reading pedagogy and teacher training. The material provides a dense, technical resource for practitioners seeking to implement evidence-based assessment strategies in the classroom.