An Examination of the Levels of Evidence in the IES Practice Guides
marzanoaca2023-09-29T06:53:53+00:00Roman J. Arora & Robert J. Marzano (September 2023) IES Practice Guides The What Works Clearing House (WWC) was established in 2002 to be a central and trusted source of scientific evidence for best practices in education (Wood, 2017). The WWC database is housed within the Institute of Education Sciences (IES) which is a component of the U.S. Department of Education. One of the primary tools the WWC employs to make recommendations regarding best practices to educators is an extensive set of Practice Guides that translate research into practical suggestions. Each practice guide contains from 3 to 9 recommendations. [...]