![]() ![]() There are the following two forms of kappa statistics: On a scale of 1 – 5, two judges scoring 4 and 5 is much better than scores of 1 and 5! ![]() Second, it doesn’t factor in the degree of agreement, only absolute agreement. First, it doesn’t account for agreements that occur by chance, which causes the percent agreement method to overestimate inter-rater reliability. While this is the simplest form of inter-rater reliability, it falls short in several ways. ![]() Therefore, the percentage agreement for the inter-rater reliability of this dataset is 9/15 = 60%. Writing Sampleįinally, we sum the number of agreements (1 + 3 + 3 + 1 + 1 = 9) and divide by the total number of possible agreements (3 * 5 = 15). The final column is the total number of agreements for that writing sample. I’ll add columns to record the rating agreements using 1s and 0s for agreement and disagreement, respectively. With three judges, there are three pairings and, hence, three possible agreements per writing sample. Next, count the number of agreements between pairs of judges in each row. ![]()
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