Nothing
context("Distribution of difficulties")
test_that("Difficulties are normally-distributed", {
item.parms <- genTrueItems(C = 0, J = 1000, num.forms = 1)
expect_true(min(item.parms$t1[, "1b"]) <= -2)
expect_true(max(item.parms$t1[, "1b"]) >= 2)
})
test_that("Difficulties are truncated", {
item.parms <- genTrueItems(C = 0, J = 1000, num.forms = 1, truncate.b = c(-2, 2))
expect_true(min(item.parms$t1[, "1b"]) >= -2)
expect_true(max(item.parms$t1[, "1b"]) <= 2)
})
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