e e . e

Studies II, IV and V addressed the generalizability by demonstrating that the effect was reproducible across therapists, children and a large variety of activities. Study IV also showed that the approach was more effective than the current approach being used by experienced therapists. This not only satisfied Ottenbacher's third phase of generalizability, showing clinical replication of the treatment effect, it also provided evidence of the effect of CO-OP as compared to current treatment practices. Studies IV and V, together showed that the effect was not restricted to the skills directly considered in the course of treatment but also generalized and transferred to other related skills. Taken together these studies provide strong convergent evidence that CO-OP is an effective approach for use with children with DCD.