1. Study the following item response table and answer the questions that follow: - B D* 1 2 RESPONSE TABLE Candidates classified by overall test score HIGHEST FIFTH NEXT HIGHEST FIFTH MIDDLE FIFTH NEXT LOWEST FIFTH LOWEST FIFTH TOTAL 2 - 13 8 17 47 C 20 14 29 9 13 85 10 10 10 5 5 40 E 20 12 26 10 10 78 Omits TOTAL 0 53 15 60 13 92 13 46 16 66 317 5 10 57 D is the key or correct answer Omits are candidates who did not attempt to answer the item. a) Calculate the Facility Index. b) Calculate the Discrimination Index. c) Is the question (item) suitable for a national examination paper? d) Give two reasons for your answer on question (c). 15 Marks) (5 Marks) (5 Marks) 15 Marks) DY analyzed 1. Study the following item response table and answer the questions that follow: - B D* 1 2 RESPONSE TABLE Candidates classified by overall test score HIGHEST FIFTH NEXT HIGHEST FIFTH MIDDLE FIFTH NEXT LOWEST FIFTH LOWEST FIFTH TOTAL 2 - 13 8 17 47 C 20 14 29 9 13 85 10 10 10 5 5 40 E 20 12 26 10 10 78 Omits TOTAL 0 53 15 60 13 92 13 46 16 66 317 5 10 57 D is the key or correct answer Omits are candidates who did not attempt to answer the item. a) Calculate the Facility Index. b) Calculate the Discrimination Index. c) Is the question (item) suitable for a national examination paper? d) Give two reasons for your answer on question (c). 15 Marks) (5 Marks) (5 Marks) 15 Marks) DY analyzed