The Effectiveness of Demands and Capacities Model on Reducing the severity of Shuttering in Children

The purpose of this study was to evaluate effectiveness of Demands and Capacities  Model (DCM) on reducing the severity of preschool children’s stuttering. In a clinical cuasiexperimental design of single group with repeated measurements; 10 preschool stuttered children (5 girls and 5 boys) referred to two speech therapy clinics that were affiliated to Tehran Welfare Organization were selected and were affected by DCM within a period of 12 individual sessions and children’s stuttering  severity was measured according to percentage of syllables stuttered(ss%) at three stages: pretest, mid test and posttest. Obtained data were analyzed according to  analysis of variance with repeated measurements.The results of ANOVA with repeated  measurements showed that DCM has created a statistically significant decrease in preschool children’s stuttering  severity (p <0/01). Result of this study confirmed the effectiveness of DCM in reduction of preschool children’s stuttering severity.