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Foorman, Barbara R.; Herrera, Sarah; Dombek, Jennifer – Elementary School Journal, 2018
This randomized controlled trial in 55 low-performing schools across Florida compared 2 early literacy interventions--1 using stand-alone materials and 1 using materials embedded in the existing core reading/language arts program. A total of 3,447 students who were below the 30th percentile in vocabulary and reading-related skills participated in…
Descriptors: Alignment (Education), Reading Materials, Elementary School Students, Primary Education
Foorman, Barbara R.; Herrera, Sarah; Dombek, Jennifer – Grantee Submission, 2018
This randomized controlled trial in 55 low-performing schools across Florida compared 2 early literacy interventions--1 using stand-alone materials and 1 using materials embedded in the existing core reading/language arts program. A total of 3,447 students who were below the 30th percentile in vocabulary and reading-related skills participated in…
Descriptors: Alignment (Education), Reading Materials, Elementary School Students, Primary Education
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St. Clair, Travis; Hallberg, Kelly; Cook, Thomas D. – Society for Research on Educational Effectiveness, 2014
Researchers are increasingly using comparative interrupted time series (CITS) designs to estimate the effects of programs and policies when randomized controlled trials are not feasible. In a simple interrupted time series design, researchers compare the pre-treatment values of a treatment group time series to post-treatment values in order to…
Descriptors: Measurement Techniques, Time, Randomized Controlled Trials, Comparative Analysis