fourPNO: Bayesian 4 Parameter Item Response Model

Estimate Barton & Lord's four parameter IRT model with lower and upper asymptotes using Bayesian formulation described by Culpepper (2015).

Install the latest version of this package by entering the following in R:
AuthorSteven Andrew Culpepper [aut, cre]
Date of publication2015-12-16 16:09:35
MaintainerSteven Andrew Culpepper <>
LicenseGPL (>= 2)

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