bu-1 06 b-o 0.4 0.2 0.0 Theta This is an example of an Item Response Curve for three different items. Which item is the most > difficult? 1. Left most curve If a test taker has a Theta > level of -1, which item would they have an 2. Center Curve approximately 50% of getting correct? 3. Right most curve Which item is the easiest