What is included:
lz
(Drasgow, Levine, & Williams, 1985) using the corrected versions for both dichotomous (Snijders, 2001) and polychotomous (Sinharay, 2016) itemsExported functions:
simulateirt(theta, difficulty, slope)
estimateirt(data, theta.method = "WLE")
changeirt()
personfit()
References:
under development...
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