Education Northwest

Project GLAD Study Year 1 Findings

Preliminary results from the first scientific study of OCDE Project GLAD® (Guided Language Acquisition Design) suggest that the popular instructional model may improve literacy outcomes for English language learners, without slowing down their English proficient peers. For an overview of the study and Year 1 findings, watch the video below.


In 2010, Education Northwest was awarded a $2.8 million dollar grant from the Institute of Education Sciences (IES) for a four-year experimental study of Project GLAD. Although Project GLAD has been used by almost 50,000 teachers in 13 states to help ELL students develop academic English skills, the model had not previously undergone a rigorous evaluation. The Education Northwest study examines Project GLAD’s effectiveness through a cluster randomized trial involving fifth-grade teachers and students in 30 Idaho elementary schools. We collected two years of data on the impact of Project GLAD on students’ reading comprehension, vocabulary, science achievement, and writing. We also measured teachers’ implementation.

Project GLAD Oregon EL Alliance 2014.ppt3.2 MB
Deussen Project GLAD Handout.doc70 KB