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.

Frank R. Vellutino of the University at Albany presented this invited paper during the symposium. For links to other papers and materials, visit the main Symposium 2003 page.


Response to Intervention as a Vehicle for Distinguishing
Between Reading Disabled and Non-Reading Disabled Children:
Evidence for the Role of Kindergarten and First Grade Intervention

Table 8. Performance Levels for the Poor Reader, No Longer at Risk, Average IQ Normal Control and the Above Average IQ Normal Control Groups on the End of Third Grade Achievement Measures

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Poor Readers
(n=148)
No Longer at Risk
LNo Kindergarten Intervention
(n=56)
No Longer at Risk
Kindergarten Intervention
(n=71)
Average IQ Normal Controls
(n=27)
Above Average IQ Normal Controls
(n=27)
Primary Word Identification Raw Score (25)1
M 24.54 24.68 24.86 24.96 25.00
SD .92 .66 .35 .19 0.00
WRMT-R Word Identification Raw Score
M 55.01 64.37 64.24 69.52 73.59
SD 9.91 9.50 7.48 9.30 7.07
WRMT-R Word Identification Standard Score
M 91.61 103.11 103.04 109.74 114.81
SD 12.86 11.94 9.70 11.37 8.13
Primary Decoding Raw Score (30)1
M 25.26 27.32 27.41 29.11 29.19
SD 6.55 5.90 5.05 1.53 2.77
WRMT-R Word Attack Raw Score
M 22.18 28.71 28.51 32.33 33.30
SD 8.49 7.41 7.10 6.53 6.29
WRMT-R Word Attack Standard Score
M 91.51 101.53 101.38 107.74 109.56
SD 13.08 12.35 11.37 10.54 11.39
WRMT-R Basic Skills Cluster Standard Score
M 92.23 104.40 104.28 111.52 115.93
SD 13.10 12.70 10.85 12.01 10.30
WIAT Reading Comprehension Raw Score
M 16.89 21.24 21.41 22.70 25.96
SD 3.97 4.35 3.45 3.50 3.77
WIAT Reading Comprehension Standard Score
M 95.18 105.43 105.99 109.30 120.11
SD 8.58 11.64 9.86 9.75 12.73
Spelling Raw Score (42)1
M 25.82 33.32 33.24 37.19 38.52
SD 7.59 6.29 6.21 4.17 3.96

1 number in parenthesis indicates maximum possible score on the measure

KEY
WRMT-R -- Woodcock Reading Mastery Test-Revised
WIAT -- Wechlser Individual Achievement Test

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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.