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Foundational Research on the SIOP Model

The SIOP Model was developed in a national research project sponsored by the Center for Research on Education, Diversity & Excellence (CREDE), a national research center funded by the U.S. Department of Education from 1996 through 2003 to assist the nation's population of diverse students, including those at risk of educational failure, to achieve academic excellence.

One of the goals of CREDE was to develop an explicit model of sheltered instruction. When the research began, sheltered instruction was widely advocated as an effective instructional strategy for language minority students, but there was little agreement among practitioners as to what constitutes an effective sheltered lesson.

Through literature review and with the collaboration of practicing teachers, researchers at California State University, Long Beach (Jana Echevarría and Mary Ellen Vogt), and the Center for Applied Linguistics (Deborah J. Short) identified instructional features of high-quality sheltered lessons. The model was refined over several years of field testing.

Early research found the SIOP Model to be effective with English Language Learners as measured by narrative and expository writing assessments. CAL is currently conducting further research in schools by facilitating professional development on the SIOP Model and examining the effects of SIOP-based instruction on student achievement in core content areas and in English language development.

Visit the CREDE project page for more information and to review selected research findings.



SIOP Model Workshops for Coaches and Professional Development Staff

Instructional coaches and other professional development staff further develop their knowledge of the Sheltered Instruction Observation Protocol (SIOP) Model and learn ways to guide and support others who are developing SIOP expertise. CAL staff can support these instructional leaders as they coach other teachers or develop and implement a professional development program for their schools.
Learn more.