List of Figures

Appendix A: Data Analysis

Figure A-1

Appendix B: Item Graphs

Figure B-1

Figure B-2

Figure B-3

Figure B-4

Figure B-5

Figure B-6

Figure B-7

Figure B-8

Figure B-9

Figure B-10

Figure B-11

Figure B-12

Figure B-13

Figure B-14

Figure B-15

Figure B-16