Achieve3000
Effectiveness of Achieve3000® Solutions
Achieve3000's differentiated instruction solutions are scientifically proven to accelerate results in language arts instruction in the form of Lexile® gains and dramatically increased scores on end-of-the-year standardized reading tests, including the Scholastic Reading Inventory (SRI), TerraNova and the Iowa Test of Basic Skills tests.

Importantly, these results have been proven in multiple independent, large-scale scientific evaluations, aligning Achieve3000 with the criteria stipulated by NCLB for selecting and implementing educational programs.

To learn more about the results of these evaluations and to download the studies in their entirety, please explore the links below.

  1. National Study: Lexile Analysis Reveals Dramatic Nonfiction Reading Skill Increases, 2009
  2. Impact of Differentiated Instruction on Elementary School Students
  3. Impact on Differentiated Instruction on a Broad-Scale Implementation
NCLB Mandates Scientifically Proven Solutions
Determining that reform strategies are effective before implementing them is one of the requirements of the Comprehensive School Reform program. The 2001 reauthorization of the Elementary and Secondary Education Act (ESEA, commonly known as No Child Left Behind) requires that only those strategies and methods proven effective by the standard of scientifically based research should be included in school reform programs. As defined in the ESEA, "scientifically based research" emphasizes experimental and quasi-experimental studies that are systematic, empirical, well designed, replicable, and have been accepted by independent reviewers.

Source: Comprehensive School Reform Program Office, Office of Elementary and Secondary Education, U.S. Department of Education (2002). Scientifically Based Research and the Comprehensive School Reform (CSR) Program.