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Christopher Doss
Efficacy of Zearn Math over two years in grades 3 to 5: An experiment in Texas
Topics: Student LearningZearn Math is a popular software platform for K-8 mathematics learning, designed to enable all students to successfully access grade-level content. RAND researchers collaborated with Zearn, the product’s developer, to design this evaluation. Then RAND conducted the study independently, randomly… more →
The Prevalence of LGBTQ+ Teachers in the U.S.
Due to limited data, we know little about the prevalence of lesbian, gay, bisexual, transgender, and queer (LGBTQ+) educators. Using the American Community Survey and Census Pulse, we examine the representation of LGBTQ+ individuals in PK-12 teaching. We find that 3.3-3.5 percent of LGBTQ+… more →
Engaging Girls in Math: The Unequal Effects of Text Messaging to Help Parents Support Early Math Development
Topics: Student LearningThis study assesses the effects of two text messaging programs for parents that aim to support the development of math skills in prekindergarten students. One program focuses purely on math, while the other takes an identical approach but focuses on a combination of math, literacy, and social-… more →
California’s Positive Outliers: Districts Beating the Odds
Despite wide achievement gaps across California between students from different racial and socioeconomic backgrounds, some school districts have excelled at supporting the learning of all their students. This analysis identifies these positive outlier districts—those in which students of color,… more →