# A comparison of the polytomous Rasch analysis output of RUMM2030 and R (ltm/eRm/TAM/lordif)

> Research article (BMC Medical Research Methodology, 2019) · cited 56× · AI/ML

**Wikidata**: [openalex:W2921710211](https://www.wikidata.org/wiki/openalex:W2921710211)  
**Source**: https://4ort.xyz/entity/a-comparison-of-the-polytomous-rasch-analysis-output-of-rumm2030-and-r-ltm-erm-tam-lordif