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Table 5 Weighted average of variance components and proportions for student performance ratings from a one-facet fully crossed p x r design

From: Exploring assessor cognition as a source of score variability in a performance assessment of practice-based competencies

SourcedfSSMSVariance estimateProportion
p12.001315.64105.7749.350.81
r1.0041.7141.712.860.07
p x r, e12.0088.297.077.070.13