Master's Theses

Date of Award

Summer 1992

Degree Name

Master of Science (MS)


Advanced Education Programs


Michael Kallam


This study investigates the change in reading comprehension ability of a child who has a distinct type of visual dysfunction, scotopic sensitivity syndrome when treated with spectrally modified lenses, Irlen filters. Recent research has indicated scotopic sensitivity syndrome as a major factor in reading disabilities. A single-subject A-B research design was used in this study. The Test of Reading Comprehension: Method for Assessing the Understanding of Written Language TORC (Brown, Hammill, and Widerholt, 1978) was used to measure the students reading comprehension. A visual analysis of the data was made by comparing scaled Conceptual/language ability and scores, comparing the General Reading Comprehension Ability. No change in reading comprehension ability was established when the student in the study wore the Irlen filters.


Copyright 1992 Mary Ellen Welshhon


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