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, by Age, Reading Long-Term Trend Bridge Study: 2004

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, Reading Long-Term Trend Bridge Study, by Age: 2004

NAEP Technical DocumentationCoefficients of linear transformations of the content-strand scales from the calibrating scale units to the units of the reporting scale, reading long-term trend bridge study, by age: 2004
Age	A	B
9	46.56	211.91
13	40.43	255.54
17	46.11	281.53
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), 2004 Reading Long-Term Trend Bridge Assessment.

Last updated 06 February 2009 (GF)