Instructional Research Group

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4281 Katella Ave Ste 205
Los Alamitos, CA 90720
+1 (714) 826-9600
https://www.inresg.org

Instructional Research Group (IRG) is an educational research institute based in Los Alamitos, California, specializing in large-scale program evaluation and field research in reading, mathematics, and the education of English Language Learners. Led by nationally renowned researcher Russell Gersten, IRG focuses on developing classroom observation instruments, assessing implementation methods, and conducting randomized controlled trials to evaluate the impact of professional development in education.

With a commitment to improving educational quality through research, IRG conducts numerous meta-analyses and research syntheses in intervention research across various educational domains. Their senior staff remains at the forefront of research and expertise in mathematics and reading instruction, response to intervention, and research methodology.

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