Effectiveness of PROMPT therapy in improving speech intelligibility in children with communication disorders : a systematic review

Date of Completion


Document Type


Degree Name

Bachelor of Science in Speech Language Pathology


Speech Intelligibility, Communication Disorders


This is a systematic review of literature showing effectiveness of prompts for restructuring Oral Muscular Phonetic Targets (PROMPT) to improving speech intelligibility of children with communication disorders. An electronic search was conducted in EBSCO, Science Direct, Proquest, Research Gate, PubMed, Google Scholar and American Speech Hearing Association, which yielded 53 articles. They were further subjected to scrutiny per level of review and screened with the application of the following inclusion criteria: study should have an experimental design, research participants are children with any type of communication disorders, PROMPT therapy was the primary intervention approach, and speech intelligibility is an outcome measure. Seven (7) articles qualified after the third level of review. Each article was summarized and rated for quality. Selection process resulted to only three (3) journal articles (one (1) level LB RCT and two (2) level LLB SSD) that looked into speech intelligibility after PROMPT. Results showed positive pretest-posttest difference in scores in speech intelligibility indirectly through improved motor speech control and that principles of motor learning were consistently used in the PROMPT sessions. In conclusion, PROMPT showed positive effects in speech intelligibility of children with communication disorders who were diagnosed with cerebral palsy and childhood apraxia of speech - both conditions which have underlying speech motor problems. The study recommended that generalization should be done with caution due to limited research (i.e. only three (3) quality journals were included) and that future experimental studies of PROMPT should involve larger number of participants and outcome measures should primarily focus on the improvement of speech intelligibility.

First Advisor

Ma. Royce R. Chua

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