Evaluating the Effectiveness of 95 PLL (95 Phonics Lesson Library): An Intervention Study for Grades 4-5

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Abstract

The COVID-19 pandemic significantly influenced educational outcomes, including reading achievement in Grades 3-5; particularly in schools primarily serving communities of color, and communities with high-poverty. This study evaluates the 95 Phonics Lesson Library (95 PLL), a targeted intervention program, in a low-SES, ethnically-diverse midwestern school district during the 2023-2024 school year. Using a quasi-experimental design, this study compares reading outcomes of a 95 PLL-participating group with a similar comparison group of Grade 4 and 5 students. Acadience and MAP growth assessments showed significant growth in reading scores for 95 PLL students relative to the comparison group, especially among Grade 5 students. Supported by qualitative findings indicating positive educator perceptions, these findings demonstrate 95 PLL’s potential to enhance reading achievement.

Authors

• Rachel Schechter, Charles River Media Group

• Rachel Gross, LXD Research

• Paul A. Chase, LXD Research