Research Base

• The Effect of DI and Prior Training on the Development of Reading Skills in First Grade
  The present study was designed in collaboration with the reading curriculum coordinator. It was decided to pilot the Horizons curriculum in two first- grade classes in two schools and to contrast the performance with two classes, in which reading was taught using the Silver, Burdet, and Ginn curriculum. In order to control for prior reading knowledge and ensure a fair comparison between instructional conditions, students were selected for the study after being matched within one quartile of their score on the Concept in Print Test. IQ, SES, gender, and race were not used to match students. All subjects scored between 178 and 205 on this the Concept in Print Test. The Concept in Print Test was developed by Clay (1970) and is used to screen children for remedial reading services. It involves letter recognition and reading orientation.
  
  
• Using Direct Instruction Programs as Intervention Programs in Grades K-3
  This article is about the use of Direct Instruction as an intervention program in schools that are using a core (basal) reading program that does not meet the instructional needs of their at-risk children. It provides an analysis and shows the benefits of using Reading Mastery, Horizons, or Corrective Reading as an Intervention program.

Evidence of Success

• Wisconsin Teachers Use Horizons to Customize Reading Lessons
  This report shows how Horizons helps 100% of students at Classical Charter School in Wisconsin achieve scores of advanced or proficient in Reading on state assessment tests.
  
  
• Pennsylvania SD Uses Horixons to Give At-Risk Readers Foundations for Success
  This report shows an increase in student reading scores at Muhlenberg Elemenary school after implementation of Horizons into the Reading program.