All Stories

  1. The Efficacy of Two Models of Professional Development Mediated by Fidelity on Fourth Grade Student Reading Outcomes†

    Article • Journal of Research on Educational Effectiveness, March 2023, Taylor & Francis

    Nancy Scammacca Lewis

  2. Middle school matters: examining the effects of a schoolwide professional development model to improve reading comprehension

    Article • Reading and Writing, March 2022, Springer Science + Business Media

    Nancy Scammacca Lewis

  3. The Efficacy of Two Models of Professional Development Mediated by Fidelity on Fourth Grade Student Reading Outcomes

    Article • May 2021, Center for Open Science

    Nancy Scammacca Lewis

  4. Current State of the Evidence: Examining the Effects of Orton-Gillingham Reading Interventions for Students With or at Risk for Word-Level Reading Disabilities

    Article • Exceptional Children, February 2021, SAGE Publications

    Nancy Scammacca Lewis

  5. Examining factors affecting reading and math growth and achievement gaps in grades 1–5: A cohort-sequential longitudinal approach.

    Article • Journal of Educational Psychology, August 2019, American Psychological Association (APA)

    Nancy Scammacca Lewis

  6. Causal Mediation in Educational Intervention Studies

    Article • Behavioral Disorders, April 2018, SAGE Publications

    Nancy Scammacca Lewis

  7. The Effect of a Social Studies–Based Reading Intervention on the Academic Vocabulary Knowledge of below-Average Readers

    Article • Reading & Writing Quarterly, April 2018, Taylor & Francis

    Nancy Scammacca Lewis

  8. A Century of Progress: Reading Interventions for Students in Grades 4-12, 1914-2014

    Article • Review of Educational Research, May 2016, American Educational Research Association (AERA)

    Nancy Scammacca Lewis

  9. Meta-Analysis With Complex Research Designs

    Article • Review of Educational Research, September 2014, American Educational Research Association (AERA)

    Nancy Scammacca Lewis

  10. Extensive Reading Interventions for Students With Reading Difficulties After Grade 3

    Article • Review of Educational Research, June 2013, American Educational Research Association (AERA)

    Nancy Scammacca Lewis