“…In generalizability studies, analysis of variance estimates the contribution of multiple sources of error to the score variance. Although some performance assessment studies report that the variance related to the judges makes a negligible contribution to the overall variance (e.g., Shavelson, Baxter, & Gao, 1993), this result does not occur when the assessment task is more complicated (Dunbar, Koretz, & Hoover, 1991).…”