# Kuder–Richardson Formula 20

> Measures in psychometrics

**Wikidata**: [Q916953](https://www.wikidata.org/wiki/Q916953)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Kuder–Richardson_formulas)  
**Source**: https://4ort.xyz/entity/kuder-richardson-formula-20


## References

1. Freebase Data Dumps. 2013