No studies of SIOP that fall within the scope of the English Language Learners (ELL) review protocol meet What Works Clearinghouse (WWC) evidence standards. The lack of studies meeting WWC evidence standards means that, at this time, the WWC is unable to draw any conclusions based on research about the effectiveness or ineffectiveness of SIOP.
The Sheltered Instruction Observation Protocol (SIOP) is a framework for planning and delivering instruction in content areas such as science, history, and mathematics to limited-English proficient students. The goal of SIOP is to help teachers integrate academic language development into their lessons, allowing students to learn and practice English as it is used in the context of school, including the vocabulary used in textbooks and lectures in each academic discipline. Using this planning framework, teachers modify the way they teach so that the language they use to explain concepts and information is comprehensible to these students. The SIOP planning and observation framework covers eight areas of instruction: preparation, building background, comprehensible input, strategies, interaction, practice and application, lesson delivery, review and assessment. In most cases, teachers receive professional development on the SIOP Model before using it to modify their lessons.
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The WWC identified eight studies of Sheltered Instruction Observation Protocol (SIOP) that were published or released between 1983 and 2008. |
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| Two studies are within the scope of the review protocol and have an eligible design, but do not meet WWC evidence standards.
Four studies are out of the scope of the ELL review protocol because they have an ineligible study design that does not meet WWC evidence standards. These studies do not use a comparison group. Two studies are out of the scope of the ELL review protocol because there was either not enough information about the study design to assess whether it meets standards, or the study did not use a sample aligned with the protocol. |
1The studies in this report were reviewed using WWC Evidence Standards, Version 2.0 (see the WWC Procedures and Standards Handbook, Chapter III).
2The descriptive information for this program was obtained from a publicly available source: the program’s website (http://www.cal.org/siop, downloaded March 2009). The WWC requests developers to review the program description sections for accuracy from their perspective. Further verification of the accuracy of the descriptive information for this program is beyond the scope of this review.
|Institute of Education Sciences
English Language Learners