IRF & IIF Graph Generator is another free Educational Tool developed by ASiMETRY to help Item Response Theory (IRT) learners and practitioners visualize how Item Response Functions (IRFs) and Item Information Functions (IIFs) change when item parameters vary.
IRF & IIF Graph Generator allows users to enter item parameters for two preset items. It automatically computes the probability of correct responses across seven different theta values, and generates the corresponding IRF curves for both items. Additionally, it calculates the IIF and Standard Error (SE) values associated with each function, offering a clear and interactive understanding of the relationships within IRT.
As part of the free IRT Tools Series from ASiMETRY, IRF&IIF Graph Generator aims to make IRT concepts more interactive, intuitive, and accessible. We hope you and your students find it both insightful and enjoyable to use.
