This study had the aim to analyze structural generalization (to untreated words, to other word positions, across and within sound classes) in three different models of contrastive approach, based on the severity of phonological disorder. The sample comprised nine subjects with phonological disorders with ages between 4 years and 2 months and 6 years and 6 months. All subjects were assessed before and after phonological therapy. Three groups with three subjects each were established for treatment; each group had one subject with severe, moderate-severe and mild-moderate disorder, and each was treated by a different model - Minimal Oppositions, Maximal Oppositions/Empty Set, and Multiple Oppositions. Statistical analysis compared therapeutic models and the severity of phonological disorders, using the types of generalization. It was verified the occurrence of different types of generalization across all groups, however, there was no statistical difference between them. All three models of intervention favored the occurrence of structural generalization in the three different severities of disorders, demonstrating that contrastive approach models are effective in the treatment of phonological disorders.
Speech; Speech disorders; Generalization; response; Speech therapy; Child
