Erratum to: PSYCHOMETRIKA—VOL. 80, NO. 3, 571–600 SEPTEMBER 2015 DOI: 10.1007/s11336-015-9451-3

The MATLAB program files and the description file mentioned in Sect. 11 of the original paper were included in the review process but were missing when the paper was published online. They are now included as the electronic supplementary materials to this erratum.

Springer regrets the error.