theta.max {MiscPsycho}R Documentation

Maximum Likelihood for IRT

Description

Returns the MLE for the Rasch Model given a set of item parameters

Usage

theta.max(x, betas)

Arguments

x Vector of item responses
betas Vector of Rasch location parameters

Author(s)

Harold Doran

See Also

irt.ability for a more general function

Examples

x <- c(1,1,1,0,0,1)
b <- c(-1, -.5, 0, 0, .5, 1)
theta.max(x, b)

[Package MiscPsycho version 1.5 Index]