Table 2.

Fit statistics summary of the CARS.

Fit statistics		Total score	Count	Measure	Infit		Outfit		Real separation	Real reliability
					MNSQ	ZSTD	MNSQ	ZSTD
Person	Mean	31.7	15	−1.33	0.97	−0.11	1.08	0.04	2.57	0.87
	S.D.	0.1	0	0.03	0.01	0.02	0.01	0.02
Item	Mean	7074.7	3,348	0	1	−1.55	1.08	−1.32	39.52	1
	S.D.	322.1	0	0.43	0.09	2.15	0.14	2.16

S.D., standard deviation.