A National Center for Education Evaluation report that presents early findings from an evaluation of the impact of two supplemental literacy programs that aim to improve the reading comprehension skills and school performance of struggling ninth-grade readers. The report describes the effects of the programs on the first cohort of students entering high school two to five years below grade level in reading. Taken together, the programs produced a statistically significant impact on reading comprehension among students who were randomly assigned to participate in the supplemental literacy programs compared to those who did not participate in the programs. There were no statistically significant impacts on student achievement in vocabulary or student use of reading behaviors promoted by the programs. (Abstract from IES.)

