The What Works Clearinghouse (WWC) evaluates research studies that look at the effectiveness of education programs, products, practices, and policies, which the WWC calls "interventions." Many studies of education interventions make claims about impacts on students' outcomes. Some studies have designs that enable readers to make causal…

Because of what are perceived by some as potential challenges it is still commonplace for research to fail to seek the opinions of pupils with multiple and complex needs. While many such pupils do have significant communication difficulties, along with other disabilities, which are undoubtedly a constraint, it is crucial in order to be inclusive,…