Table of Contents  |  Search Technical Documentation  |  References

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, Science Combined National and State Main Assessment, by Grade: 2005

NAEP Technical DocumentationCoefficients of linear transformations of the content-strand scales from the calibrating scale units to the units of the reporting scale, science combined national and state main assessment, by grade: 2005

Grade	Scale	A	B
4	Physical science	31.87	152.72
	Earth science	34.89	151.33
	Life science	34.34	148.21
8	Physical science	38.55	146.03
	Earth science	35.87	150.22
	Life science	37.35	148.93
12	Physical science	36.81	148.11
	Earth science	36.64	144.77
	Life science	35.56	148.11
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 Science Assessment.

Printer-friendly Version