Objective: This investigation examined the effect of a modified cycles approach with a home program in single word productions of 3 children ages 7 years 4 months to 7 years six months of age who currently receive school-based intervention for speech-sound production. Method: An A-B-C-B-C-multiple treatment single case research design was used for this investigation. The dependent variable was the decrease of phonological patterns in single words measured by word probes. The independent variables were a modified cycles approach followed by the addition of a home practice program. Three participants completed the investigation; a fourth participant withdrew after the baseline phase. All participants exhibited gliding of liquids and vowelization. Targets for all participants consisted of /r/ and /l/ with Phase B including consonant blends in the initial position of words and Phase C including consonant blends in the final position of words. Results: Results for this intervention were inconclusive as P1 and P2 made greater gains with intervention alone. Conversely, P3 demonstrated a zero-celerating to accelerating trend with intervention alone and a decelerating to zero-celerating trend when the home program was incorporated. Conclusion: The inconclusive results reveal that further investigation is needed to determine the benefits of a home program for speech sound production. Some limitations of the current investigation include the research design, limited data points per phase, and the possible treatment interference from Phase to Phase.
