Description Usage Arguments Examples
Calculates the root mean squared deviation.
1 | rmsd(theta1, theta2)
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theta1 |
Vector containing the estimated latent traits from the first estimation method. |
theta2 |
Vector containing the estimated latent traits from the second estimation method. |
1 2 3 4 5 6 7 | data(SAPA)
twopl_mod <- "F = 1 - 16"
twopl_fit <- mirt(data = SAPA, model = twopl_mod,
itemtype = "2PL", SE = TRUE)
latent_mle <- fscores(twopl_fit, method = 'ML', full.scores = TRUE, full.scores.SE = TRUE)
latent_map <- fscores(twopl_fit, method = 'MAP', full.scores = TRUE, full.scores.SE = TRUE)
rmsd(latent_mle, latent_map)
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