NAEP Analysis and Scaling - Coefficients of Linear Transformations of the Univariate Scale From the Individual State Calibrating Scale Units to the Units of the Reporting Scale, Science State Assessment, by Grade: 2009

NAEP Analysis and Scaling → Scale Linking and Transformation to the Reporting Metric → Transformation Constants for NAEP Assessments → Coefficients of Linear Transformations of the Univariate Scale From the Individual State Calibrating Scale Units to the Units of the Reporting Scale, Science State Assessment, by Grade: 2009

NAEP Technical DocumentationCoefficients of linear transformations of the univariate scale from the individual state calibrating scale units to the units of the reporting scale, science state assessment, by grade: 2009
Grade	Scale	A	B
# Rounds to zero. ¹ Univariate scale. 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), 2009 Science State Assessment.
4	OneScale¹	0.98	#
8	OneScale¹	0.98	0.01

Coefficients of linear transformations of the univariate scale from the individual state calibrating scale units to the units of the reporting scale, science state assessment, by grade: 2009
Grade	Scale	A	B
# Rounds to zero. 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), 2009 Science State Assessment.
4	Physical science	0.96	0.01
	Earth and space	0.96	0.01
	Life science	0.97	#
8	Physical science	0.96	0.01
	Earth and space	0.97	0.01
	Life science	0.97	0.01

Last updated 08 January 2016 (GF)