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NAEP Analysis and Scaling → Scale Linking and Transformation to the Reporting Metric → Transformation Constants for NAEP Assessments → Coefficients of Linear Transformations of the Content-Strand Scales From the Calibrating Scale Units to the Units of the Reporting Scale, by Grade, Mathematics Assessment: 2005

NAEP Technical DocumentationCoefficients of linear transformations of the content-strand scales from the calibrating scale units to the units of the reporting scale, grades 4 and 8, mathematics combined national and state main assessment: 2005

Grade	Scale	A	B
4	Numbers sense, properties, and operations	31.49	234.66
	Measurement	32.23	236.58
	Geometry and spatial sense	24.79	235.77
	Data analysis, statistics, and probability	27.84	240.11
	Algebra and functions	27.42	242.40
8	Numbers sense, properties, and operations	37.78	277.11
	Measurement	46.57	275.86
	Geometry and spatial sense	33.22	275.64
	Data analysis, statistics, and probability	40.37	281.91
	Algebra and functions	35.64	281.79
Note: Transformed scale scores below 0 were reset to values of 0, and any transformed scale scores greater than 500 were set to values of 500. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Mathematics Assessment.

Coefficients of linear transformations of the content-strand scales from the calibrating scale units to the units of the reporting scale, grade 12, mathematics national main assessment: 2005

Grade	Scale	A	B
121	Numbers sense, properties, and operations	36.97	149.33
	Measurement & Geometry and spatial sense	35.41	150.10
	Data analysis, statistics, and probability	34.24	150.40
	Algebra and functions	35.05	150.19
1 The Measurement & Geometry and spatial sense subscales were combined for grade 12 in 2005. Note: Transformed scale scores below 0 were reset to values of 0, and any transformed scale scores greater than 300 were set to values of 300. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Mathematics Assessment.

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