Multidimensional IRT and DIF in R with mirt
30:04
IRT GRM model and DIF for Ordinal Polytomous data in R
42:15
Propensity Score Analysis in R with Nearest Neighbor, Optimal Pair, and Optimal Full Matching
1:44:06
Multidimensional IRT Equating
14:55
Checking IRT Assumptions for Polytomous Items in R
14:08
General Comparison of Psychometric Models IRT & CDM
1:31:06
Item Response Theory in R with {mirt}
39:12
Is this a good questionnaire?
27:40