I tried to get freeware to check local item dependence such as IRTNEW and LDIP but I can not find any link for them in the internet, would you help me if you have links for them or any other freeware (GUI) to chek LID.
Hello there! I have attached a PDF document that describes IRT software and some of the software listed is free and the links to access is provided. Some other is obtained by writing to the authors. I am not sure that the links will work but I hope this helps. Best, Patricia.
Hello again! I have attached a different compilation of "uncommercial" software for IRT. I hope you find something that is helpful for your study. I particularly like Dr. Hanson's web page. Best, Patricia.