infoWI | R Documentation |
Calculates an index representing the product of a test information function and an ability distribution.
infoWI(myItems, myAbilities, type = "empirical")
myItems |
A vector of item deltas. |
myAbilities |
A vector of person abilities. |
type |
A character String. Should the test information be calculated empirically ("empirical" - default) or analytically using moments of distribution ("approx"). |
A double.
infoWIOut <- infoWI(runif (10, -2, 3), rnorm(1000, 0, 1))
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