“…Simply put, the better a participant's ability to hold and mentally manipulate spoken words, the more accurate their speech production, above and beyond the influence of chronological age, vocabulary size, and auditory discrimination ability. This finding aligns with more general evidence from children with a history of phonological delay / phonological disorder who reportedly have poorer pWM skills than their typically developing peers (Afshar et al, 2017;Cabbage, Farquharson, & Hogan, 2015;Waring et al, 2017Waring et al, , 2018. Like Torrington Eaton and Ratner (2016), we hypothesize that the ability to mentally 'hold' and 'manipulate' phonological information may be involved in facilitating SOUND CHANGE.…”