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Ann Dyslexia. 2017 Jul;67(2):114-127. doi: 10.1007/s11881-016-0127-1. Epub 2016 Mar 18.

The effect of a specialized dyslexia font, OpenDyslexic, on reading rate and accuracy.

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School of Education, Elon University, 2105 Campus Box, Elon, NC, 27244, USA.
School of Education, University of North Carolina at Chapel Hill, CB#3500, 201F Peabody, Chapel Hill, NC, 27599-3500, USA.


A single-subject alternating treatment design was used to investigate the extent to which a specialized dyslexia font, OpenDyslexic, impacted reading rate or accuracy compared to two commonly used fonts when used with elementary students identified as having dyslexia. OpenDyslexic was compared to Arial and Times New Roman in three reading tasks: (a) letter naming, (b) word reading, and (c) nonsense word reading. Data were analyzed through visual analysis and improvement rate difference, a nonparametric measure of nonoverlap for comparing treatments. Results from this alternating treatment experiment show no improvement in reading rate or accuracy for individual students with dyslexia, as well as the group as a whole. While some students commented that the font was "new" or "different", none of the participants reported preferring to read material presented in that font. These results indicate there may be no benefit for translating print materials to this font.


Decoding; Dyslexia; Fluency; Font; Learning disabilities; OpenDyslexic; Reading

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