Research Database

This tool allows education practitioners and researchers to quickly access quantitative research on tutoring program effectiveness. These 150+ research studies were selected due to their rigorous research designs which align with What Works Clearinghouse and Every Student Succeeds Act standards for moderate and strong evidence of intervention efficacy. Many studies were originally identified by their inclusion in recent meta-analyses (Baye et al., 2018; Neitzel et al., 2021; Nichow et al., 2020). Research may be sorted by grade level, subject, and tutor type in order to explore the evidence base for particular program designs. This database does not include qualitative research on best practices for tutoring implementation, for which we recommend exploring our District Playbook and Toolkit for Tutoring Programs.

If you have additional research studies (quantitative or qualitative) that you would like to share, please fill out this form or send an email to

Displaying 1 - 13 of 13
1stClass@Number Evaluation report and executive summary. (2018). Nunes, T., Barros, R., Evangelou, M., Strand, S., Mathers, S., & Sanders-Ellis, D. . London: Education Endowment Foundation

Intervention for first graders with limited number knowledge: Large-scale replication of a randomized controlled trial. (2015). Gersten, R., Rolfhus, E., Clarke, B., Decker, L. E., Wilkins, C., & Dimino, J. (2015). American Educational Research Journal, 52(3), 516–546.

Preliminary evaluation of a tier 2 mathematics intervention for first-grade students: Using a theory of change to guide formative evaluation activities . (2014). Clarke, B., Doabler, C. T., Strand Cary, M., Kosty, D., Baker, S., Fien, H., & Smolkowski, K. . School Psychology Review, 43(2).

Catch Up® Numeracy Evaluation Report and Executive Summary . (2014). Rutt, S., Easton, C., & Stacey, O. . London: Education Endowment Foundation.

Evaluating math recovery: Assessing the causal impact of a diagnostic tutoring program on student achievement. (2013). Smith, T. M., Cobb, P., Farran, D. C., Cordray, D. S., & Munter, C. . American Educational Research Journal, 50(2), 397–428.

Effects of first-grade number knowledge tutoring with contrasting forms of practice . (2013). Fuchs, L. S., Geary, D. C., Compton, D. L., Fuchs, D., Schatschneider, C., Hamlett, C. L., DeSelms, J., Seethaler, P. M., Wilson, J., Craddock, C. F., Bryant, J. D., Luther, K., & Changas, P. . Journal of Educational Psychology, 105(1), 58–77.

Effects of first-grade number knowledge tutoring with contrasting forms of practice. (2013). Fuchs, L. S., Geary, D. C., Compton, D. L., Fuchs, D., Schatschneider, C., Hamlett, C. L., ... & Bryant, J. D. Journal of Educational Psychology.

Every Child Counts: Testing policy effectiveness using a randomised controlled trial, designed, conducted and reported to CONSORT standards. (2013). Torgerson, C. J., Wiggins, A., Torgerson, D., Ainsworth, H., & Hewitt, C. . doi:10.1080/14794802.2013.797746. doi:10.1080/14794802.2013.797746

Early numeracy intervention program for first-grade students with mathematics difficulties. (2011). Bryant, D. P., Bryant, B. R., Roberts, G., Vaughn, S., Pfannenstiel, K. H., Porterfield, J., & Gersten, R.. Exceptional Children.

The Prevention, Identification, and Cognitive Determinants of Math Difficulty. (2005). Fuchs, L. S., Compton, D. L., Fuchs, D., Paulsen, K., Bryant, J. D., & Hamlett, C. L.. Journal of Educational Psychology, 97(3), 493–513.