1. Reliability and Linking of Assessments

2. Figure 1 Differences Between Percentages Proficient or Above on State Assessments and on NAEP: Grade 8 Mathematics, 2005 Data sources: “State of the States,” Education Week Quality Counts At 10, 25(17), p 79, January 5, 2006 The Nation’s Report Card: Mathematics 2005, p 16, 2006, National Center for Education Statistics.

3. Figure 2 Scatter Plot of Percent Proficient or Above on the State Assessment and Percent Proficient or Above on NAEP: Grade 8 Mathematics, 2005 Data sources: “State of the States,” Education Week Quality Counts At 10, 25(17), p 79, January 5, 2006 The Nation’s Report Card: Mathematics 2005, p 16, 2006.

4. Figure 3 Scatter Plot of Percent Proficient or Above on the State Assessment and Percent Basic or Above on NAEP: Grade 8 Mathematics, 2005 Data sources: “State of the States,” Education Week Quality Counts At 10, 25(17), p 79, January 5, 2006 The Nation’s Report Card: Mathematics 2005, p 16, 2006.

5. Table 3a Math Performance in 10 States Whose Proficient Cut Scores Appear More Aligned with the NAEP Proficient Level: Grade 8, 2005 Table 3b Math Performance in 37 States Whose Proficient Cut Scores Appear More Aligned with the NAEP Basic Level: Grade 8, 2005 Mean Standard ErrorMean Standard Error % Proficient or Above on NAEP 262.5 % Basic or Above on NAEP 701.2 % Proficient or Above on State Test 302.6 % Proficient or Above on State Test 661.7

6. Differences Between Percentages Basic or Above on NAEP and Proficient or Above on State Assessments: Grade 8 Mathematics, 2005