mCLASS:Reading 3D software displays precise prompts keyed on student responses. This makes the assessment easier for educators to learn to administer and helps ensure consistency and reliability.

For example, the DIBELS Initial Sound Fluency (ISF) probe assesses a child's ability to identify and produce the initial sound of a given word. As shown here, a prompt on the handheld computer clearly guides the teacher with the proper administrative instructions and also provides thumbnail versions of the pictures being displayed to the student.