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 Transformation of the Subscales from the Calibrating Scale Units to the Units of the Reporting Scale, Science National Assessment, by Grade: 2015

NAEP Technical DocumentationCoefficients of Linear Transformation of the Subscales from the Calibrating Scale Units to the Units of the Reporting Scale, Science National Assessment, by Grade: 2015

Coefficients of linear transformations of the subscales from the calibrating scale units to the units of the reporting scale, science national assessment, by grade: 2015
Grade	A	B
4	36.29	151.66
8	36.67	151.98
12	37.89	149.19
NOTE: Univariate scale. 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), 2015 Science Assessment.

Coefficients of linear transformation of the subscales from the calibrating scale units to the units of the reporting scale, science national assessment, by subscale and grade: 2015
Grade	Subscale	A	B
4	Physical science	36.86	151.64
	Earth and space sciences	35.04	152.58
	Life science	35.50	151.92
8	Physical science	35.93	151.86
	Earth and space sciences	36.38	151.05
	Life science	38.91	151.99
12	Physical science	36.48	149.82
	Earth and space sciences	35.40	149.94
	Life science	38.73	149.06
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), 2015 Science Assessment.

Last updated 18 November 2021 (ML)

Printer-friendly Version