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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 9 Reading 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 9 reading long-term trend assessment, by block and item: 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 Reading Long-Term Trend Assessment.
RA N021203 1-5 600 75
RC N021803 1-4 600 94
RD N022103 1-4 600 84
RE N022405 1-4 600 84

Score range and Cohen's Kappa or intraclass correlation for the constructed-response items from the previous year assessed that were rescored in 2012, age 9 reading long-term trend assessment, by block and item: 2012
Block Item Range of response codes Sample size Cohen’s Kappa Intraclass correlation
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 intraclass correlation is not reported for dichotomously scored items. 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 Reading Long-Term Trend Assessment.
RA N021203 1-5 600 0.63 0.84
RC N021803 1-4 600 0.86 0.88
RD N022103 1-4 600 0.68 0.77
RE N022405 1-4 500 0.72 0.81

Last updated 13 November 2013 (JL)