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Do you have reliability data that you used to “test” the LD Screening Tool? And/or how have you validated it?

March 10th, 2009

Laura Doto writes, “Also, do you have reliability data that you used to “test” the tool? And/or how have you validated it?”

I have informally validated the Learning Difficulty/Disability Pre-Screening Tool and Informal Comprehensive Identification Tool over my 35+ years of assessing students by the correlation of it to the following formal testing that was done with my students:

Woodcock Johnson III

Woodcock Reading Diagnostic Battery

Developmental Optometrist’s Testing Reports

Occupational Therapist’s Assessment Reports

Gibson Cognitive Test Battery (GCTB)

Woodcock Reading Mastery Test (WRMT)

Learning Efficiency Test (LET-II)

Test of Language Development-Primary (TOLD-P:3)

Clinical Evaluation of Language Fundamentals (CELF-4)

Wisc IV


I have also had a variety of parents use the informal assessment tool for their kids who later had formal testing done which confirmed the results of the informal assessment tool.

Additionally, I have used research & resources from:


Fass, Larry A. Learning Disabilities: A Competency Based Approach. Boston: Houghton Mifflin, 1981

Forrest, Elliott, O.D. Visual Imagery: An Optometric Approach. Duncan, Oklahoma, 1981

Groffman, Sidney, O.D. Computerized Perceptual Therapy: Program Series Operating Manual. Santa Ana, California: Optometric Education Foundation, 1998

Heiberger-Wilson, Heiniger-White. S’cool Moves for Learning. Shasta, California: Integrated Learner Press, 2000

Lerner, Janet. Children With Learning Disabilities. Boston: Houghton Mifflin, 1971

Levine, Mel, M. D. A Mind at a Time. New York: Simon & Schuster, 2002

Mann, Suiter, McClung. Handbook in Diagnostic-Prescriptive Teaching. Boston: Allyn and Bacon, 1987

Shawitz, Sally, M.D. Overcoming Dyslexia. New York: Vintage Books, 2005

Hope you found this helpful,

Bonnie Terry, M. Ed., BCET

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One Response to “Do you have reliability data that you used to “test” the LD Screening Tool? And/or how have you validated it?”

  1. bonnieterry says:

    Thanks for your input. I have already implemented some of your suggestions in my more recent posts.

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