What is a benefit of diagnostic instruction for literacy development?

• A. It makes instruction less personalized
• B. It reduces data collection
• C. It personalizes support for optimal literacy development
• D. It delays feedback

Answer: (C)

Diagnostic instruction uses ongoing assessment to identify exactly where a learner stands with literacy skills—what they can do independently, what requires prompting, and what still needs work. With that information, the teacher personalizes instruction, selecting targeted strategies, materials, and pacing, and delivering feedback at the right time to support growth. This approach makes instruction responsive to each student’s needs, aiming for continuous improvement in reading and writing.

That’s why the best choice is that diagnostic instruction personalizes support for optimal literacy development. The other options don’t fit because this approach does not make instruction less personalized, it actually relies on collecting data to guide teaching, and it emphasizes timely feedback rather than delaying it.