@article{Himelfarb2019, author = "Igor Himelfarb and Katerina M. Marcoulides and Guoliang Fang and Bruce L. Shotts", title = "{Online_Appendix – Supplemental material for A Two-Level Alternating Direction Model for Polytomous Items With Local Dependence}", year = "2019", month = "9", url = "https://sage.figshare.com/articles/journal_contribution/Online_Appendix_Supplemental_material_for_A_Two-Level_Alternating_Direction_Model_for_Polytomous_Items_With_Local_Dependence/9765149", doi = "10.25384/SAGE.9765149.v1" }