# Early tracking and different types of inequalities in achievement: difference-in-differences evidence from 20 years of large-scale assessments

> Research article (Educational Assessment Evaluation and Accountability, 2021) · cited 54× · AI/ML

**Wikidata**: [openalex:W3124724377](https://www.wikidata.org/wiki/openalex:W3124724377)  
**Source**: https://4ort.xyz/entity/early-tracking-and-different-types-of-inequalities-in-achievement-difference-in-differences-evidence-from-20-years-of-la