Researchers and policymakers use certification as a metric of teaching quality in subject areas as well as subfields of education. We examined the association between having a teacher with dual certification in elementary and special education and math and reading achievement for students with disabilities (SWDs). We also examined whether dual…

A latent growth model was used to investigate the longer term efficacy of phonics and integrated language arts instruction as well as amount of such instruction on children's reading development, using the nationally representative Early Childhood Longitudinal Study data set (kindergarten through fifth grade). Type and amount of instruction were…