NAEP Analysis and Scaling - Range of Response Codes, Percent Agreement, and Cohen's Kappa or Intraclass Correlation for the Constructed-Response Items From Previous Years, Rescored in 2012, Age 17 Mathematics Long-Term Trend Assessment,

NAEP Analysis and Scaling → Initial Activities → Constructed-Response Interrater Reliability → Range of Response Codes, Percent Agreement, and Cohen's Kappa or Intraclass Correlation for the Constructed-Response Items From Previous Years, Rescored in 2012, Age 17 Mathematics Long-Term Trend Assessment, by Item and Block: 2012

NAEP Technical DocumentationScore range and percent agreement for the constructed-response items from the previous year assessed that were rescored in 2012, age 17 mathematics long-term trend assessment, by item and block: 2012
Block	Item	Range of response codes	Sample size	Percent exact agreement
NOTE: Special codes assigned to student responses including blank, off-task, and not-scorable were included in the calculation of the percent exact agreement measure. 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.
MB	N302901	1-2	800	100
	N308901	1-2	800	100
	N309301	1-2	800	100
	N309901	1-2	800	99
	N310201	1-2	800	99
MC	N325301	1-2	800	100
	N325601	1-2	800	99
	N325701	1-2	800	99
	N326601	1-2	800	98
	N326801	1-2	800	96
	N327101	1-2	800	98
MD	N315501	1-2	800	99
	N321001	1-2	800	99
	N321101	1-2	800	99
	N321401	1-2	800	99
	N321901	1-2	800	98
ME	N303801	1-2	800	99
	N304101	1-2	800	100
	N304201	1-2	800	99
	N304601	1-2	800	99
	N304901	1-2	800	99
MF	N299001	1-2	800	99
	N305501	1-2	800	98
	N305801	1-2	800	100
	N306201	1-2	800	99
	N306401	1-2	800	99

Score range and Cohen's Kappa or intraclass correlation for the constructed-response items from previous years that were rescored in 2012, age 17 mathematics long-term trend assessment, by item and block: 2012
Block	Item	Range of response codes	Sample size	Cohen’s Kappa	Intraclass correlation
† Not applicable. The intraclass correlation is not reported for dichotomously scored items; Cohen’s Kappa is not reported for polytomously scored items. NOTE: Cohen's Kappa is a measure of reliability that is used for items that are dichotomously scored. The intraclass correlation is used for items with more than two categories. The discrepancy in sample sizes compared to the first table is due to the fact that percent agreement is calculated from the entire sample size, while Cohen's Kappa and intraclass correlation statistics exclude those who omit the item. 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.
MB	N302901	1-2	800	0.99	†
	N308901	1-2	800	0.99	†
	N309301	1-2	800	0.99	†
	N309901	1-2	700	0.99	†
	N310201	1-2	700	0.98	†
MC	N325301	1-2	800	0.99	†
	N325601	1-2	700	0.96	†
	N325701	1-2	700	0.98	†
	N326601	1-2	800	0.99	†
	N326801	1-2	700	0.99	†
	N327101	1-2	700	0.99	†
MD	N315501	1-2	700	0.99	†
	N321001	1-2	800	0.98	†
	N321101	1-2	700	0.99	†
	N321401	1-2	700	0.99	†
	N321901	1-2	700	0.98	†
ME	N303801	1-2	700	1.00	†
	N304101	1-2	800	0.99	†
	N304201	1-2	800	0.98	†
	N304601	1-2	700	0.99	†
	N304901	1-2	700	1.00	†
MF	N299001	1-2	700	0.99	†
	N305501	1-2	700	0.98	†
	N305801	1-2	800	0.99	†
	N306201	1-2	700	1.00	†
	N306401	1-2	700	1.00	†

Last updated 13 November 2013 (JL)