Lexicality and intensity in speech intervention (Cummings et al., 2018)

Alycia Cummings, Janet Hallgrimson & Sarah Robinson
Purpose: This study examined how lexical representations and intervention intensity affect phonological acquisition and generalization in children with speech sound disorders.Method: Using a single-subject multiple baseline design, 24 children with speech sound disorders (3;6 to 6;10 [years;months]) were split into 3 word lexicality types targeting word-initial complex singleton phonemes: /ɹ l ʧ θ/. Specifically, academic vocabulary words, nonwords (NWs), and high-frequency (HF) words were contrasted. Intervention intensity was examined by comparing the performance of 12...
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