2PL-class {irt}R Documentation

Two-Parameter Logistic IRT model

Description

Two-Parameter Logistic IRT model

Slots

a

Item discrimination parameter

b

Item difficulty parameter

D

Scaling constant

se_a

Standard error of item discrimination parameter

se_b

Standard error of item difficulty parameter

Author(s)

Emre Gonulates

[Package irt version 0.2.9 Index]