Table 2.
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Interrater and Intrarater Reliability for the Grading Scale

TestRatings analyzedα estimateLevel of agreement
Interrater reliabilityGrader 1 (second), grader 2 (second), grader 3 (second)0.545Moderate
Intrarater reliabilityGrader 1 (first), grader 1 (second)0.979Almost perfect
Grader 2 (first), grader 2 (second)0.847Almost perfect
Grader 3 (first), grader 3 (second)0.781Substantial
TestRatings analyzedα estimateLevel of agreement
Interrater reliabilityGrader 1 (second), grader 2 (second), grader 3 (second)0.545Moderate
Intrarater reliabilityGrader 1 (first), grader 1 (second)0.979Almost perfect
Grader 2 (first), grader 2 (second)0.847Almost perfect
Grader 3 (first), grader 3 (second)0.781Substantial
Table 2.
Open in new tab

Interrater and Intrarater Reliability for the Grading Scale

TestRatings analyzedα estimateLevel of agreement
Interrater reliabilityGrader 1 (second), grader 2 (second), grader 3 (second)0.545Moderate
Intrarater reliabilityGrader 1 (first), grader 1 (second)0.979Almost perfect
Grader 2 (first), grader 2 (second)0.847Almost perfect
Grader 3 (first), grader 3 (second)0.781Substantial
TestRatings analyzedα estimateLevel of agreement
Interrater reliabilityGrader 1 (second), grader 2 (second), grader 3 (second)0.545Moderate
Intrarater reliabilityGrader 1 (first), grader 1 (second)0.979Almost perfect
Grader 2 (first), grader 2 (second)0.847Almost perfect
Grader 3 (first), grader 3 (second)0.781Substantial
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