Reanalysis of Warne (@Russwarne) et al 2019 Army Beta data with IRT.
Test appears to have some issues for modern people, way too easy in general (many items have 0 variance). Still, mostly positive loadings of items and scores correlate to modern tests.
http://rpubs.com/EmilOWK/Warne_army_beta2019 …pic.twitter.com/4ZsYmgZIs5
9:27 PM - 20 Feb 2019
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