Persistent Speech Sound Disorder in a 22-Year-Old Male: Communication, Educational, Socio-Emotional, and Vocational Outcomes

Persistent Speech Disorder (PSD) is present when a speech impairment extends beyond 8–9 years of age. Persistent Speech Disorder can extend into adolescence and adulthood. While PSD can include individuals with residual speech errors, such as distortions of /r/, /s/, and /z/, clinicians are particularly concerned in cases where PSD affects speech intelligibility. This paper is presented in two parts. Part 1 reviews the limited literature available on speech, language, literacy, educational, vocational, and socio-emotional outcomes in people with PSD of currently unknown origin. Part 2 presents a case study of a 22-year-old man, known as BJ, who has Nonverbal IQ in the normal range and severe PSD, specifically Childhood Apraxia of Speech. Longitudinal data on BJ from 3;3 years to 22 years is presented, alongside BJ's insights into PSD written via e-mail or using his electronic communication device. These two sources of information add to the limited body of information about the course of PSD and the exper...