genItemParameter {simExam}

Generate Item Parameter Values

Description

Generate Item Parameter Values

Usage

genItemParameter(type, parms, quantity = 1, truncate.b = c(-Inf, Inf))

Arguments

type

Either "a" for the item discrimination or "b" for the item difficulty

parms

vector of length two. If type = "a", parms must be setup such that a ~ U(parms[1], parms[2]). For type = "b", parms must be such that b ~ N(parms[1], parms[2]).

quantity

number of item parameters to generate

truncate.b

vector of length 2 containing the limits for the difficulty distribution

Value

scalar containing one item parameter