Nothing
library(catR, quietly = TRUE)
context("expectedObsInf")
load("cat_objects.Rdata")
test_that("ltm expectedObsInf calculates correctly", {
ltm_cat@estimation <- "MAP"
ltm_cat@answers[1:5] <- c(0, 1, 0, 0, 1)
package_mei <- expectedObsInf(ltm_cat, item = 6)
catR_mei <- MEI(itemBank = it_ltm, item = 6, theta = estimateTheta(ltm_cat),
x = ltm_cat@answers[1:5], method = "BM", it.given = it_ltm[1:5, ])
expect_equal(round(package_mei, 5), round(catR_mei, 5))
})
test_that("grm expectedObsInf calculates correctly", {
grm_cat@estimation <- "MAP"
grm_cat@answers[1:5] <- c(4, 5, 2, 4, 4)
package_mei <- expectedObsInf(grm_cat, item = 6)
catR_mei <- MEI(itemBank = it_grm, item = 6, theta = estimateTheta(grm_cat),
x = grm_cat@answers[1:5] - 1, method = "BM", model = "GRM",
it.given = it_grm[1:5, ])
expect_equal(round(package_mei, 4), round(catR_mei, 4))
})
test_that("gpcm expectedObsInf calculates correctly", {
gpcm_cat@estimation <- "MAP"
gpcm_cat@answers[1:5] <- c(4, 5, 2, 4, 4)
package_mei <- expectedObsInf(gpcm_cat, item = 6)
catR_mei <- MEI(itemBank = it_gpcm, item = 6, theta = estimateTheta(gpcm_cat),
x = gpcm_cat@answers[1:5] - 1, method = "BM", model = "GPCM",
it.given = it_gpcm[1:5, ])
expect_equal(round(package_mei, 4), round(catR_mei, 4))
})
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