A proof of principle for using adaptive testing in routine Outcome Monitoring: the efficiency of the Mood and Anxiety Symptoms Questionnaire -Anhedonic Depression CAT

Table 2 Characteristics of the CAT under several stopping rules.

Stopping rule	Number of Items Used			Mean SE(θ)	Marginal Reliability	Correlation between CAT θand Complete Test θ
	Mean	SD	% All
None	22.000	0.000	100.0	0.231	0.945^a	1.000
SE(θ) <0.2	19.726	3.504	65.3	0.234	0.944	0.999
SE(θ) <0.3	8.644	5.712	11.0	0.298	0.910	0.979
SE(θ) <0.4	4.484	3.849	2.9	0.373	0.850	0.946
SE(θ) <0.5	2.789	1.840	0.3	0.425	0.793	0.917
SE(θ) <0.6	1.505	0.520	0.0	0.521	0.577	0.837

ISSN: 1471-2288