Journal of Childhood & Developmental Disorders

Evaluation of the Psychometric Properties of an Online Evaluation Tool for Dyslexia

The purpose of the study was to examine the psychometric properties of an online dyslexia evaluation tool (ODET). The ODET is comprised of 14 subtasks that evaluate phonological processing (Word Deletion, Syllable Deletion, Onset-Rime Deletion, Phoneme Deletion, Onset-Rime Blending, Phoneme Blending, Segmentation and Dynamic Segmentation), letter knowledge (Letter Knowledge and Letter Sound Knowledge) and reading (Word Knowledge, Word Building Knowledge, Spelling and Sentence Completion). The ODET provides percentage correct, standard scores and At-Risk scores for each subtest and a Global At-Risk Score that provides information whether the child is At-Risk for dyslexia. To examine the psychometric properties, 40 children (16 females and 24 males) were evaluated with the ODET, the CTOPP-2, the WIATIII, and the PPA. Results indicated that the ODET had appropriate psychometric properties.

Author(s):

David P Hurford* , Lauren P Decker, Samantha P Conway

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