Nothing
library(catR)
context("estimateSE-MLE")
load("cat_objects.Rdata")
test_that("ltm MLE theta standard error calculates correctly", {
ltm_cat@estimation <- "MLE"
ltm_cat@answers[1:5] <- c(0, 1, 0, 0, 1)
package_se <- estimateSE(ltm_cat)
catR_se <- semTheta(thEst = estimateTheta(ltm_cat), it = it_ltm,
x = ltm_cat@answers, method = "ML")
expect_equal(package_se, catR_se)
})
test_that("grm MLE theta standard error calculates correctly", {
grm_cat@estimation <- "MLE"
grm_cat@answers[1:4] <- c(1,2,3,4)
package_se <- estimateSE(grm_cat)
catR_se <- semTheta(thEst = estimateTheta(grm_cat), it = it_grm,
x = c(grm_cat@answers) - 1, method = "ML", model = "GRM")
expect_equal(round(package_se, 3), round(catR_se, 3))
})
test_that("gpcm MLE theta standard error calculates correctly", {
gpcm_cat@estimation <- "MLE"
gpcm_cat@answers[1:5] <- c(4, 5, 2, 4, 4)
package_se <- estimateSE(gpcm_cat)
catR_se <- semTheta(thEst = estimateTheta(gpcm_cat), it = it_gpcm,
x = c(gpcm_cat@answers)-1, model = "GPCM", method = "ML")
expect_equal(round(package_se, 6), round(catR_se, 6))
})
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