9.7 Exercises

Fit the G-DINA model to data2 and Q2, both of which can be downloaded from Blackboard, and answer the following questions.

• How many item and joint attribute distribution parameters do we have?
• What is the estimated size of latent class with attribute profile 100?
• What are the estimated delta parameters of Item 5 and associated standard errors?
• What is the EAP estimate of attribute profile of student 10?
• What is the MLE estimate of attribute profile of student 25?