NAEP Analysis and Scaling - Coefficients of Linear Transformations of the Content-Strand Scales from the Calibrating Scale Units to the Units of the Reporting Scale, Mathematics Long-Term Trend Assessment, by Age: 2012

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, Mathematics Long-Term Trend Assessment, by Age: 2012

NAEP Technical DocumentationCoefficients of linear transformations of the content-strand scales from the calibrating scale units to the units of the reporting scale, mathematics long-term trend assessment, by age: 2012
Age	A	B
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), 2012 Mathematics Long-Term Trend Assessment.
9	35.84	243.10
13	36.07	282.98
17	30.85	306.01

Last updated 20 September 2013 (JL)