Table 1 Variability to each error sources

Source of Variation	df	Mean Square	Variance Component	Standard Error	% of Variability
Persons (p)	171	22.321	0.152	0.010	21.47
Item (i)	4	202.238	0.061	0.043	8.62
Rater (r)	3	57.554	0.010	0.011	1.41
Criteria (c)	3	201.284	0.048	0.045	6.78
Person by Item (pi)	684	3.008	0.141	0.010	19.92
Person by Rater (pr)	513	0.571	0.008	0.001	1.13
Person by Criteria (pc)	513	0.686	0.011	0.002	1.55
Item by Rater (ir)	12	12.615	0.016	0.007	2.26
Item by Criteria (ic)	12	20.776	0.028	0.011	3.95
Rater by Criteria (rc)	9	13.604	0.014	0.007	1.98
Person by Item by Rater (pir)	2,052	0.286	0.043	0.002	6.07
Rater by Item by Criteria (pic)	2,052	0.320	0.052	0.003	7.34
Rater by Rater by Criteria (prc)	1,539	0.134	0.004	0.001	0.56
Item by Rater by Criteria (irc)	36	1.518	0.008	0.002	1.13
(pir)+Residual	6,156	0.112	0.112	0.002	15.82
Total	13,759	10,821.660*	0.708		100.00

indicates the total value for sum of squares for score effect.