The Waterford Early Reading Program™ has been formally assessed in many schools and districts of various sizes and types. The studies consistently show the program to be effective in preparing young children to learn how to read. Most notably, the Waterford Early Reading Program raises the lowest performers in a class to reading competency.

Read an overview of research (Adobe Acrobat required) on the effectiveness of the Waterford Early Reading Program. Studies of Waterford Early Math and ScienceLevel One are currently in progress.

In 1998, Waterford Early Reading Program Level One was implemented in nearly every kindergarten classroom in the state of Idaho. Of those using Waterford, eight districts were selected as a representative sample for a three-year study. Each year student performance was tracked relative to a historical control group. The results were measured using a Kindergarten Inventory created by Marilyn Jager Adams and Philip B. Gough. Overall, students using Waterford performed markedly better than the control group, with all improvements being statistically significant. Average effect sizes measured between 0.21 and 1.09 for various subgroups of students. The following are some of the study findings:

  • The lower third of students using the Waterford Early Reading Program outperformed the control group with an effect size of .65
  • The students who completed Level One of the program had an effect size of .45 over the control group
  • Those in the lower third who completed Level One of the program had an effect size of 1.09 over the control group

Read the Walberg Study (Adobe Acrobat required)

In the Journal of Experimental Child Psychology, Steven Hecht reports his findings after investigating the effects of Waterford Early Reading Program Level One on 42 kindergarten students of low socioeconomic status.

"The amount of time that children used Waterford Early Reading Program Level One was correlated with all post-test measures of emergent literacy skills. Importantly, intervention time was uniquely associated with growth in phonemic awareness skills, even while controlling for initial levels of phonemic awareness, letter knowledge, invented spelling, vocabulary knowledge, and print concepts. Similarly, the amount of time using Waterford Early Reading Program Level One was also uniquely related to growth in invented spelling, letter knowledge, and print concepts."

Read the Hecht Study (Adobe Acrobat required)

Each year, Waterford Institute and other organizations study the efficacy of Waterford programs. Findings are published in a yearly research compendium. You can view the compendia by clicking the links below.

1998199920002001-2002

 

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