What Is RTI?
Response to Intervention (RTI) is a systematic framework schools use to identify struggling readers early and provide increasingly intensive support based on how well students respond to instruction. Unlike waiting until a child fails significantly, RTI catches reading problems in kindergarten or first grade and intervenes immediately.
The model operates on a simple principle: monitor all students' reading progress regularly, deliver quality classroom instruction first, then add targeted interventions for those who fall behind. If a student doesn't respond adequately to that intervention, the school escalates to more intensive support. This data-driven approach helps distinguish between students who struggle because they haven't received good instruction versus those with genuine learning disabilities like dyslexia.
The Three-Tier Structure
RTI uses three escalating levels of support:
- Tier 1 is core classroom instruction. All students receive evidence-based reading instruction focused on phonics, fluency, vocabulary, and comprehension. Teachers assess progress every few weeks using benchmark assessments. About 80% of students meet grade-level benchmarks with Tier 1 alone.
- Tier 2 targets students scoring below benchmark (typically the bottom 15-20%). These students receive small-group interventions 3 to 4 times weekly for 20 to 30 minutes, using structured programs like Orton-Gillingham based methods that emphasize systematic phonics. Progress monitoring happens every 1 to 2 weeks.
- Tier 3 is intensive intervention for students who don't respond adequately to Tier 2 (typically 1-5% of students). This involves individual instruction, often 4 to 5 sessions weekly, and usually leads to special education evaluation and an IEP if the student has a qualifying disability.
How RTI Identifies Reading Disabilities
RTI data helps schools determine whether a reading problem reflects a true disability. A student who struggles with phonics but improves rapidly once given explicit phonics instruction may simply have had weak earlier instruction. Conversely, a student who makes minimal progress despite consistent, intensive Tier 2 or Tier 3 interventions may have dyslexia or another specific learning disability. Schools document this response pattern and use it to justify special education referral and IEP development.
What Schools Monitor in RTI
- Phonemic awareness (ability to hear and manipulate sounds in words)
- Phonics application and decoding accuracy
- Oral reading fluency (words correct per minute)
- Vocabulary knowledge
- Reading comprehension on grade-level passages
Common Questions
- Does RTI replace special education testing? No. RTI is a general education framework. If a student doesn't respond to Tier 2 and Tier 3 interventions, schools still conduct formal psychoeducational testing and pursue an IEP. RTI data simply informs that process and shows the school tried evidence-based interventions first.
- What if my child is in Tier 2 or Tier 3? Does that mean they have dyslexia? Not automatically. Tier 2 and 3 placement means the child needs more support than standard classroom instruction. Some students respond well and exit within a few months. Dyslexia diagnosis requires formal evaluation by a psychologist or specialist, though RTI data helps identify students who should be tested.
- How long does a student stay in Tier 2? Most schools monitor progress for 6 to 12 weeks. If a student reaches benchmark performance, they move back to Tier 1 monitoring. If progress is minimal after multiple weeks, the school considers increasing intensity or special education referral.
Related Concepts
RTI's effectiveness depends on understanding how its three tiers work together. Learn more about each level: Tier 1, Tier 2, and Tier 3.