Purpose Loosely defined diagnostic criteria for acquired apraxia of speech (AOS) limit
clinicians' ability to diagnose the disorder validly and reliably. The purpose of this study was …

Purpose Diagnostic recommendations for acquired apraxia of speech (AOS) have been
contradictory concerning whether speech sound errors are consistent or variable. Studies …

Purpose The primary characteristics used to define acquired apraxia of speech (AOS) have
evolved to better reflect a disorder of motor planning/programming. However, there is debate …

Purpose We sought to characterize articulatory distortions in apraxia of speech and aphasia
with phonemic paraphasia and to evaluate the diagnostic validity of error frequency of …

Background: The differential diagnosis between apraxia of speech (AOS) and aphasia with
phonemic paraphasia is challenging because the disorders share similar speech …

Purpose This retrospective analysis examined group differences in error rate across 4
contextual variables (clusters vs. singletons, syllable position, number of syllables, and …

Purpose This study aimed to test whether an approach to distinguishing errors arising in
phonological processing from those arising in motor planning also predicts the extent to …

Background: Many researchers and clinicians have suggested that a definitive characteristic
of adult apraxia of speech (AOS) is that the speech sound errors are highly variable …

Purpose: There is persistent uncertainty about whether sound error consistency is a valid
criterion for differentiating between apraxia of speech (AOS) and aphasia with phonemic …

Purpose This study was conducted to evaluate the clinical utility of error variability for
differentiating between apraxia of speech (AOS) and aphasia with phonemic paraphasia …