Table 2.

Summary of computer adaptive testing (CAT) simulation (1000 iterations).

Domain QoL	Stopping rule, SE(θ)	Number of items used		Range of items used	Mean SE	Reliability	Correlation between CAT θ and complete test θ
		Mean	SD
Physical	<.32	10.01	1.22	8-11	0.32	0.9	1
	<.45	4.23	0.84	3-6	0.43	0.82	0.99
	<.55	2.46	0.5	2-3	0.52	0.73	0.98
Psychological	<.32	9.8	2	7-12	0.32	0.9	1
	<.45	4.5	0.94	3-6	0.42	0.82	0.98
	<.55	4.32	0.45	4-6	0.52	0.73	0.96
Social	<.32	7.3	1.06	5-8	0.36	0.87	1
	<.45	4.32	1.71	3-8	0.42	0.82	0.99
	<.55	2.44	0.7	2-4	0.5	0.75	0.97
Environmental	<.32	7.96	1.25	6-9	0.34	0.89	1
	<.45	3.61	1.39	2-7	0.43	0.82	0.98
	<.55	2.34	0.48	2-4	0.48	0.77	0.97