Josh Medrano, Ph.D.
Postdoctoral Scholar · Berkeley School of Education
I am a Postdoctoral Scholar in the Berkeley School of Education. I hold a Ph.D. in Human Development from University of Maryland, College Park and a M.Ed. in Educational Psychology from University of Virginia. In my research, I aim to understand how students engage cognitive skills when learning math and science. Specifically, I examine executive functioning and spatial/relational reasoning. The goal of this research is to inform efforts in improving math and science learning, as these skills are foundational for later academic and career outcomes.
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Research
My work sits at the intersection of cognitive development, educational psychology, and STEM learning. I focus on three interrelated questions: (1) how executive functions—working memory, inhibitory control, and cognitive flexibility—support mathematical reasoning; (2) how spatial and relational reasoning scaffolds conceptual understanding in math and science; and (3) how environmental factors, such as air pollution exposure, shape cognitive development and learning outcomes in children.
A growing line of research examines equity in STEM education, with particular attention to school readiness and achievement patterns among Asian American children—a population whose diversity is often overlooked in developmental research.
Peer-Reviewed Publications
- Medrano, J., Devlin, B., Schingledecker, M., Thompson, C.A., & Miller-Cotto, D. (2026). Executive function and spatial/relational reasoning relate to individual differences in fraction understanding. Journal of Experimental Child Psychology.
- Medrano, J. & Miller-Cotto, D. (2025). Examining subgroup differences in school readiness and math achievement in Asian American children through the opportunity-propensity model. Early Education and Development.
- Medrano, J., Mohan, S., & Lombardi, D. (2025). Cognitive flexibility moderates shifts in plausibility judgments of claims about climate change. Discourse Processes.
- Miller-Cotto, D. & Medrano, J. (2025). Does working memory moderate the effect of fading on math performance? British Journal of Educational Psychology.
- Medrano, J. & Miller-Cotto, D. (2025). Understanding working memory as a facilitator of math problem solving: Offloading as a potential strategy. British Journal of Educational Psychology.
- Medrano, J. & Prather, R. W. (2023). Rethinking executive functions in mathematical cognition. Journal of Cognition and Development.
- Medrano, J., Crnosija, N., Prather, R. W., & Payne-Sturges, D. (2022). Bridging the environment and neurodevelopment for children's health: Associations between real-time air pollutant exposures and cognitive outcomes. Frontiers in Psychology.
- Prather, R. W., Benitez, V. L., Kendall Brooks, L., Dancy, C. L., Dilworth-Bart, J., Dutra, N. B., Faison, M. O., Figueroa, M., Holden, L. T. R., Johnson, C., Medrano, J., Miller-Cotto, D., Matthews, P. G., Manly, J. J., & Thomas, A. K. (2022). What can cognitive science do for people? Cognitive Science.
- Medrano, J.*, Jaffe, J.*, Lombardi, D., Holzer, M. A., & Roemmele, C. (2020). Students' scientific evaluations of water resources. Water.
* Co-first authors
News
- Feb 2026 Paper accepted in Journal of Experimental Child Psychology investigating the role of executive functions and spatial/relational reasoning in fraction understanding.
- Aug 2025 Paper accepted in Early Education and Development examining subgroup differences in Asian American kindergartners' mathematical achievement.
- Dec 2025 Our article on offloading was featured in the Edutopia blog post Top 10 most significant education studies of 2025.
- Apr 2025 Two papers accepted in the British Journal of Educational Psychology on working memory during learning. A paper accepted at Discourse Processes on executive functions and climate change plausibility judgments.
- Mar 2025 Presented work on Asian American children's school readiness at BSE Research Day, AERA, and SRCD.
- Apr 2024 Attended the Modern Meta-Analysis Research Institute, an intensive five-day workshop in Washington, DC.
- Apr 2024 Undergraduate mentee received first place among Psychological Sciences posters at the UMD Undergraduate Research Symposium.
- Mar 2024 Presented first postdoc poster at Cognitive Development Society in Pasadena, CA.
- Oct 2023 Successfully defended dissertation.
- Sep 2023 Started position as Postdoctoral Scholar at Kent State University.
- Jan 2023 Literature review accepted at Journal of Cognition and Development. DOI · Preprint
- Oct 2022 Published on air pollutant exposures and cognitive outcomes in Frontiers in Psychology. Link
- Apr 2022 Received a Diversity Award from Cognitive Development Society.
- May 2020 Published on students' scientific evaluations of water in Water (special issue). PDF