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Students with special needs are increasingly being served in the general education classroom. Co-teaching is one service delivery option designed to meet those needs. The purpose of this article is to synthesize data-based articles pertaining to co-teaching between general and special education personnel. Of 89 articles reviewed, only 6 provided sufficient quantitative information for an effect size to be calculated. Effect sizes for the individual studies ranged from low (0.24) to high (0.95), with an average total effect size of 0.40. Dependent measures were varied and included grades, achievement scores, and social and attitudinal outcomes. Results indicate that further research is needed to substantiate that co-teaching is an effective service delivery option for students with disabilities.
Murawski et al. (Sat,) studied this question.