Training in data-based individualization has benefits for both teachers and students.

Educators can use the Tier 1.5 Calculator to determine if a Tier 1.5 intervention is necessary.

The IRRC's new online tool for assessing student instructional needs is now available.

Some research suggests that classwide intervention, or Tier 1.5, can be beneficial when the majority of students in a class are not meeting reading goals.

Dr. Erica Lembke, featured speaker at the 2025 Iowa Science of Reading Summit, shares details about her current research on Data-Based Individualization in math and writing instruction.

Teachers can use data to guide instructional decisions in Tier 1 settings.

Educators can use data-based decision-making to inform instructional practices and improve student outcomes.