Abstract
Most assessments of phonemic awareness require speech responses and cannot be used with individuals with severe speech impairments who may use augmentative and alternative communication (AAC). This study investigated the reliability and construct validity of the Dynamic Assessment of Phonemic Awareness via the Alphabetic Principle (DAPA-AP), which does not require speech. In all, 17 adults with mild to moderate intellectual disabilities completed the DAPA-AP, a letter-sound knowledge task, four measures of phonological awareness, and two reading assessments. Results indicated the DAPA-AP was both a reliable and valid assessment of phonemic awareness for this sample. Consequently, the DAPA-AP represents an important step in developing phonemic awareness assessments that have the potential to be suitable for use with a wide range of individuals, including those with SSI.
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