# Does Supplemental Instruction Improve Grades and Retention? A Propensity Score Analysis Approach

> Research article (The Journal of Experimental Education, 2021) · cited 23× · AI/ML

**Wikidata**: [openalex:W3133881404](https://www.wikidata.org/wiki/openalex:W3133881404)  
**Source**: https://4ort.xyz/entity/does-supplemental-instruction-improve-grades-and-retention-a-propensity-score-analysis-approach