PURPOSE: To verify whether the stimulation of groups of sounds results in greater phonological changes than the stimulation of single sounds, and to analyze the occurrence of generalization across and within sound classes. METHODS: The sample comprised ten children with phonological disorders, with ages between 4 years and 8 months and 7 years and 3 months, divided into two groups. Group 1 (G1) was treated by the Multiple Oppositions approach, and Group 2 (G2), by the ABAB-Withdrawal and Multiple Probes approach. The treatment of G1 consisted of stimulation of the contrast of many sounds presented together, while the treatment of G2 involved stimulation of only one target sound per cycle of treatment. It was analyzed the number of absent sounds and the occurrence of generalization across and within sound classes, pre- and post-treatment. Data were statistically and descriptively analyzed. RESULTS: G1 acquired more sounds than G2; however, this difference was not significant. Considering the generalization within sound class, G1 presented major changes, while generalization across sound classes was greater for G2, although none of these results were statistically significant. CONCLUSION: Both methods favored changes in the phonological system of the children studied, allowing the acquisition of phonemes and the occurrence of generalizations. There is no difference between them regarding treatment effectiveness.
Speech disorders; Speech; Speech therapy; Generalization, response; Sound; Child
