Study Leadership Team

University of Kansas

  • Charles Greenwood
  • Judith Carta
  • Maura Linas
  • ane Atwater
  • Joo Young Hong
  • Na Young Kong
  • J. P. Legerski

Scott McConnell, University of Minnesota
Howard Goldstein, The Ohio State University
Ruth Kaminski, Dynamic Measurement Group


  • Larry Hedges, Northwestern University
  • David Francis, University of Houston

What Studies are Planned?

We will conduct two large scale evaluation studies using rigorous study designs and measurement models

Participation will include preschool programs (PreK; Head Start, Head Start Childcare), in multiple sites and states in KS, MN, OH, and OR

  • Study 1: We will evaluate the developed interventions with CRTIEC staff serving as the key implementers (Year 4)
  • Study 2: We will replicate Study 1 where Preschool staff are the key implementers (Year 5)

Research Questions

  • What Intervention(s) are Actually Happening?
    Are these Interventions Engaging Preacademic Responding?
  • Do the Interventions Lead to Better Outcomes?
  • What Mediating/Moderating Variables Help Explain the Outcomes Observed?
  • Are the Effects Educationally Significant?

What We Expect to Learn?

  • We will understand the feasibility of the RTI approach to preschool with respect to language and early literacy learning
    We will know how to adapt RTI to Preschool
    We will understand how to align Preschool RTI with K-5 RTI services
    We will know how to best blend Part B services with Preschool instruction in all Tiers, including Tier 3
    We will know the best progress monitoring architecture to use for decision making in preschool
  • We will estimate effect sizes for Tier 2 and Tier 3 interventions with respect to readiness for Kindergarten
  • We will learn which delivery models are best for Tier 2 and 3 interventions in preschool
  • We will understand how aspects of implementation fidelity mediate children’s outcomes and how to better prepare teachers

What We Are Not Doing

We are not testing the efficacy of a comprehensive 3 tier model in the current work scope

  • We are developing effective practices needed for use in Tiers 2 and 3
  • Future research will be needed to evaluate the efficacy of all three tiers used in a comprehensive prevention-intervention effort