Research Article

Analysis of Variance for Item Differences in Verification Data with Unknown Groups

Table 2

Performance of estimators of for several values of and . The true values are , and negative estimates of were set to 0.

ā€‰Percent relative bias in Percent relative RMSE in

=6, =8 (correct)0, 0, 011, 52, 12

=2, =248, -40, 015, 78, 12

=24, =20, 0, 014, 60, 12

=3, =166, -28, 013,68,12

=12, =40,-2,012,54,12

MAD, FAP=0.113, 6,112,53,12

MAD, FAP=0.053,-4,112, 58, 12

MAD, FAP=0.011, 2, 112,55,12