Homework 4, Chapter 6


1. What were the major item formats discussed in your text?


2. 23 people take an exam and 17 people get item # 12 correct. What is the difficulty value for item #12?


3. True/False items are only used for educational tests.


True or False


4. Using figure 6-5 from your text (p. 168), determine which test item is the worst.


5. If you were to take a computer adapted version of the ACT test based on IRT, would you most likely be taking more or less test items as compared to someone who took a traditional paper and pencil version of the ACT test?


More or Less