Optimal Test Design Approach to Fixed and Adaptive Test Construction
Founded on the optimal test design framework, the TestDesign package
allows for constructing fixed test forms and simulating adaptive tests
to the same test specifications with complex sets of constraints. This
approach can render a variety of testing formats with different levels
of adaptivity and relative efficiency. Several item banks from
real-world testing scenarios are provided as examples.
Install the latest release from CRAN:
install.packages("TestDesign")itempool <- loadItemPool(itempool_science_data)
itemattrib <- loadItemAttrib(itemattrib_science_data, itempool)
constraints <- loadConstraints(constraints_science_data, itempool, itemattrib)cfg <- createStaticTestConfig(
item_selection = list(
method = "TIF",
target_location = c(-1, 1),
target_value = c( 8, 10)
)
)
solution <- Static(cfg, constraints)
summary(solution)
print(solution)
plot(solution)cfg <- createShadowTestConfig()
solution <- Shadow(cfg, constraints, true_theta = c(0, 1))
plot(solution, type = "audit" , examinee_id = 1)
plot(solution, type = "shadow", examinee_id = 2, simple = TRUE)
summary(solution)The documentation is available at https://choi-phd.github.io/TestDesign/
