Abstract:
This report examines changes in the average Stanford Achievement Test (SAT) scores in
reading of first and fifth grade students in elementary schools in the Guam Public School
System (GPSS) from Spring, 1993, through Spring, 2011. A systematic implementation of
Direct Instruction, involving training and support, began in 24 schools in the fall of 2003,
starting with the lower grades and gradually expanding to the upper grades. In the fall of
2008 15 of these schools ceased using DI, while the remaining schools and two additional
newly created schools, continued to use the program.