Authors: Rvachew S, Brosseau-Lapré F
Title: A Randomized Trial of 12-Week Interventions for the Treatment of Developmental Phonological Disorder in Francophone Children
Source: American Journal of Speech Language Pathology 2015 24(4): 637-658
Year: 2015
Research Design: Randomised Controlled Trial
Rating Score: 07/10
This rating is confirmed
Eligibility specified - Y
Random allocation - Y
Concealed allocation - Y
Baseline comparability - Y
Blind subjects - N
Blind therapists - N
Blind assessors - Y
Adequate follow-up - Y
Intention-to-treat analysis - N
Between-group comparisons - Y
Point estimates and variability - Y

Purpose: This study was designed to test the relative efficacy of different combinations of intervention approaches when targeting speech production accuracy and phonological awareness skills. All children received individual speech therapy, a home program, and a small-group phonological awareness intervention. Method: Sixty-five 4-year-olds with a developmental phonological disorder received these intervention components in different combinations over 12 weeks, resulting in 4 groups: output-oriented individual intervention and articulation practice home program, output-oriented individual intervention and dialogic reading home program, input-oriented individual intervention and articulation practice home program, and input-oriented individual intervention and dialogic reading home program. Results: A significant interaction of the individual treatment condition and the home program condition was observed for 2 outcome measures: targeted feature match (which reflected changes in speech production accuracy for features and word shape structures that were targeted in therapy) and explicit phonological awareness skills. Conclusion: In this context, in which the children received a brief period of direct therapy and a home program component provided sequentially, the most effective strategy was to teach the parents to use treatment procedures at home that were congruent with the direct therapy component.

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