Psychometric properties of computerized adaptive testing for chronic obstructive pulmonary disease patient-reported outcome measurement

Table 4 The correlation coefficient between theta of the CAT and domain scores of the paper-and-pencil version of mCOPD-PRO

	mCOPD-PRO total scores	Physiological domain scores	Psychological domain scores	Surrounding domain scores
Random method	0.919	0.838	0.715	0.623
MFI method	0.760	0.569	0.864	0.535

Notes Data are expressed as correlation coefficient; all P-values < 0.001
Abbreviations CAT, Computerized Adaptive Testing; mCOPD-PRO, Modified Patient-reported Outcome Scale for Chronic Obstructive Pulmonary Disease; MFI, Maximum Fisher Information

ISSN: 1477-7525