A Multisite Randomized Controlled Trial of the Effectiveness of Descubriendo la Lectura

Geoffrey D. Borman, Trisha H. Borman, So Jung Park, Scott Houghton

Research output: Contribution to journalArticlepeer-review

Abstract

We present findings from a randomized controlled trial of Descubriendo la Lectura (DLL), an intervention designed to improve the literacy skills of Spanish-speaking first graders, who are struggling with reading. DLL offers one-on-one native language literacy instruction for 12 to 20 weeks to each school’s lowest performing first-graders. Examining literacy outcomes for 187 students, hierarchical linear model analyses revealed statistically significant effects of student-level assignment to DLL on all 9 outcomes evaluated. Impacts were as large as 1.24 standard deviations, or a learning advantage relative to controls exceeding a full school year of achievement growth. The mean effect size of d = 0.66 across the nine literacy measures is equal to approximately two thirds of the overall literacy growth that occurs across the first-grade year.

Original languageEnglish (US)
Pages (from-to)1995-2020
Number of pages26
JournalAmerican Educational Research Journal
Volume57
Issue number5
DOIs
StatePublished - Oct 1 2020
Externally publishedYes

Keywords

  • English language learners
  • literacy
  • randomized controlled trial
  • Spanish

ASJC Scopus subject areas

  • Education

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