Responsiveness-to-Intervention Symposium

December 4-5, 2003 * Kansas City, Missouri

The National Research Center on Learning Disabilities sponsored this two-day symposium focusing on responsiveness-to-intervention (RTI) issues. The speakers, discussants, and participants assembled represented the wide diversity of individuals with a vested interest in LD determination issues. Advocates, instructional staff, researchers, and state-level education officials brought their collective and considerable expertise to the discussions.

W. David Tilly III of Heartland Area Education Agency in Johnston, Iowa, presented this invited paper during the symposium. For links to other papers and materials, visit the main Symposium 2003 page.


How Many Tiers Are Needed for Successful Prevention and Early Intervention?
Heartland Area Education Agency's Evolution from Four to Three Tiers

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Results of a Three Tiered Model Implementation:
The Heartland Early Literacy Project (HELP)

Results: Phonemic Segmentation Fluency (PSF) Raw Score Gains

Data reported in this section reflect cross-sectional data collected during each successive year of project implementation. During Heartland's first year of implementation, 36 Heartland schools participated in the project. Additional schools joined the project in each successive project year. One hundred twenty-one schools are currently participating in the project. The number of students participating during each project year is listed directly on each figure.

Figure 2 reflects phonemic-segmentation fluency growth data for participating schools across 4 implementation years. Each successive year, students' end of the year proficiency on PSF has increased. The gray areas on the graphic represent the target rates of phonemic segmentation fluency recommended as placing children on successful trajectories for beginning reading skills (Good & Kaminski, 2002).


Figure 2: Project-Level Data (121 Schools)
Cross-year box plots phonemic segmentation fluency, Kindergarten Heartland Students

Figure 2: Project-Level Data (121 Schools)

Note. This graphic was generated by the University of Oregon DIBELS website and modified.

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The symposium was made possible by the support of the U.S. Department of Education Office of Special Education Programs. Renee Bradley, Project Officer. Opinions expressed herein are those of the authors and do not necessarily represent the position of the U.S. Department of Education.