Response To Intervention¶

Strategy · All strategies
Evidence · 2 claims (1 for, 1 mixed) · 4 studies (2 quant-synthesis, 1 review, 1 design), q2–q3 · 2 of 4 report an effect size · 1 claim rests on one study

Description¶

Response To Intervention (RTI) is a multi-tier framework for preventing and remediating academic and behavioral difficulties, most widely implemented in early reading and mathematics. All students receive universal screening and high-quality core instruction (Tier 1); students flagged as at-risk receive supplemental small-group intervention (Tier 2); students who fail to respond receive individualized, intensive intervention (Tier 3). Decisions about movement between tiers are driven by continuous progress monitoring rather than waiting for failure to accumulate.

Design Implications¶

RTI replaces a wait-to-fail referral model with proactive, data-based prevention: identifying risk early and matching instructional intensity to demonstrated need Frequent progress monitoring with instructional adjustment improves achievement for struggling learners. [+S]. Its effectiveness depends on the quality of Tier 1 instruction and the fidelity of intervention delivery — weak core instruction generates false positives, and unmonitored interventions generate false negatives.

Context¶

Requirements¶

• Valid, brief universal screening administered to all students 2–3 times per year
• Evidence-based Tier 2 and Tier 3 intervention programs delivered with documented fidelity
• Regular progress monitoring (e.g., weekly or biweekly curriculum-based measurement) with explicit decision rules for tier movement
• Time protected in the schedule for intervention blocks that do not displace core instruction
• A team structure for reviewing data and making tier decisions (Data-Wise Improvement Process)

Constraints¶

• Screening measures with poor predictive validity misidentify students, over-referring some and missing others [-M]
• Implementation without decision rules or fidelity checks degrades into unstructured extra help with no measurable benefit [-M]
• Tier 2 groups that are too large, or interventions of too short a duration (fewer than ~8–10 weeks), rarely produce reliable response data [-M]
• In practice, RTI has often been implemented primarily as a gateway to special education evaluation rather than as prevention, diluting its intended effect [-W]

Implementation Variability¶

• Standard-protocol vs. problem-solving models: standard-protocol RTI assigns all at-risk students to a validated intervention; problem-solving RTI designs individualized interventions per student. Standard protocols are easier to implement at scale and produce more consistent results [+M]
• MTSS extensions: many districts have broadened RTI into Multi-Tiered System of Supports, integrating behavior (PBIS) and attendance data alongside academics
• Domain scope: strongest evidence base in K–3 reading; mathematics and secondary implementations are less well validated [~M]

Target Learners¶

• Early elementary students at risk in reading — the most extensively validated population, where early identification prevents compounding failure [~S]
• Struggling learners who need more instructional time and smaller groups than core instruction provides
• Students with strong risk profiles benefit from Tier 3's individualization; students already proficient gain little from tiered supplements and should not be pulled from core instruction for them [-M]

Target Learning Goals¶

• Foundational literacy and numeracy skills where early deficits compound (fluency, phonics, number sense)
• Closing achievement gaps before they widen, rather than remediating entrenched failure
• Behavioral self-regulation, in MTSS variants that include Tier 2 behavior supports

Instructions¶

1. Screen universally. Administer brief validated screeners to all students; establish local cut scores for risk.
2. Deliver strong Tier 1. Ensure core instruction is evidence-based and differentiated — RTI cannot compensate for a weak core (Direct Instruction).
3. Supplement with Tier 2. Provide small-group (3–5 students) intervention, 20–40 minutes, 3–5 times per week, using a validated standard-protocol program.
4. Monitor progress. Track at-risk students weekly with curriculum-based measurement; graph scores against an aim line.
5. Apply decision rules. After 8–12 weeks, adjust: students responding return to monitoring only; non-responders move to Tier 3 with more individualized, intensive support (Adaptive Difficulty, Accommodations).
6. Review fidelity and data as a team. Check that interventions were delivered as designed before concluding a student is a non-responder.

Claims¶

• Data-based decision making is the least-met full-implementation criterion while universal screening is the most-met [~W]

Related Strategies¶

• Universal Design for Learning — complements RTI by making Tier 1 instruction accessible to the widest range of learners, reducing false referrals
• Formative Assessment — the classroom-level counterpart; RTI's progress monitoring is formative assessment institutionalized across tiers
• Differentiated Instruction — Tier 2 grouping is one structured form of differentiation
• Deploy prevention and intervention supports for underachieving gifted students
• Apply goal-line decision rules to CBM data to adjust IEP goals or revise instruction
• Use a multi-stage screening tool (SSBD) to nominate and rank at-risk students for behavioral intervention
• Preteach core classroom content in small Tier 2 groups of 3-5 students
• Select Tier 2 literacy interventions by weighing ESSA evidence ratings, cost, feasibility, and use of the supplemental matrix for homegrown designs
• Use Early Warning Indicator (EWI) and Multi-Tiered Systems of Support (MTSS) for continuous improvement
• Conduct universal mental health screening with the Student Risk Screening Scale to inform intervention
• Invest state discretionary dollars in early intervention systems such as MTSS to reduce later intensive supports
• Organize student well-being supports through a three-tier MTSS with universal screening
• Implement multi-tiered supports focused on acceleration, not remediation
• Organize integrated support systems as universal, supplemental, and intensive tiers
• MTSS wraparound services with adequate counseling ratios and continuous improvement monitoring
• Screen for and monitor children at risk of nonresponse to universal SWPBIS and target nonresponders for more intensive tiered interventions
• Use two-stage gated screening: an early reading screen followed by several weeks of progress monitoring before confirming at-risk status

Examples¶

• Early reading RTI in Minnesota and Ohio statewide initiatives — universal DIBELS screening three times per year, with Tier 2 small-group phonics intervention and weekly oral-reading-fluency monitoring; both states documented reduced special education identification rates in participating districts.
• NCII (National Center on Intensive Intervention) — provides validated Tier 2/Tier 3 intervention tools charts and progress-monitoring resources used by US districts implementing RTI/MTSS.
• What Works Clearinghouse RTI practice guide — Gersten et al.'s five recommendations for grades K–6 reading RTI, including screening all students and intervening with research-validated programs.
• Daily individualized tutoring with response-to-intervention monitoring — Literacy First's K-2 tutoring, adjusted by weekly progress monitoring

Key Sources¶

• Fuchs, D., & Fuchs, L. S. (2006). Introduction to response to intervention: What, why, and how valid is it? Reading Research Quarterly, 41(1), 93–99. doi:10.1598/RRQ.41.1.4
• Gersten, R., Compton, D., Connor, C. M., Dimino, J., Santoro, L., Linan-Thompson, S., & Tilly, W. D. (2008). Assisting students struggling with reading: Response to Intervention and multi-tier intervention in the primary grades (NCEE 2009-4060). National Center for Education Evaluation and Regional Assistance, IES. https://ies.ed.gov/ncee/wwc/PracticeGuide/26
• Fletcher, J. M., & Vaughn, S. (2009). Response to intervention: Preventing and remediating academic difficulties. Child Development Perspectives, 3(1), 30-37. doi:10.1111/j.1750-8606.2008.00072.x
• Vellutino, F. R., Scanlon, D. M., Zhang, H., & Schatschneider, C. (2008). Using response to kindergarten and first grade intervention to identify children at-risk for long-term reading difficulties. Reading and Writing, 21(4), 437–480. doi:10.1007/s11145-007-9098-2
• Fuchs, L. S., & Fuchs, D. (1986). Effects of systematic formative evaluation: A meta-analysis. Exceptional Children, 53(3), 199–208. doi:10.1177/001440298605300301