Why require standards for evidence?
The field of K-12 education contains a vast array of educational interventions
--such as reading and math curricula, schoolwide reform programs, after-school programs, and new educational technologies--
that CLAIM to be able to improve educational outcomes and, in many cases, to be supported by evidence. This evidence often consists of poorly-designed and/or advocacy-driven studies (Institute of Education Sciences, 2003, p. iii).