Exam Item Difficulty factor (p value) Item Discrimination (Point Biserial Index) Reliability (KR-20) 1 .72 0.39 0.80 2 .50 0.68 0.76 Considering the above item analysis, which statement is correct? Group of answer choices The reliability of the items is poor. In item 2, the lower-scoring students answered the question correctly. The difficulty factor of both items is within an acceptable range. The item discrimination (PBI) indicates that the items discriminate well between low-scoring and high-scoring students