Archives of Public Health

Table 4 Targeting, explanatory power and person separation index (PSI) for the capacity and performance metrics. SD=Standard Deviation

From: Measuring functioning and disability using household surveys: metric properties of the brief version of the WHO and World Bank model disability survey

		MDS Chile					MDS Sri Lanka
		Mean	SD	PSI	Correlation ^a	Explained variance^b	Mean	SD	PSI	Correlation ^a	Explained variance^b
Capacity	Difficulty	0,232	1,281	0,788	0,984	0,969	0,293	1,308	0,805	0,838	0,923
Capacity	Ability	− 1,544	1,338	0,788	0,984	0,969	− 1,189	1,477	0,805	0,838	0,923
Performance	Difficulty	0,310	1,258	0,734	0,845	0,715	0,289	1,218	0,805	0,875	0,792
Performance	Ability	− 1,623	0,993	0,734	0,845	0,715	− 1,394	1,208	0,805	0,875	0,792

^aCorrelation Full versus Brief MDS versions’ ability estimates.
^bExplained variance in predicting the MDS full version ability score based on the brief version’s ability estimates.

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ISSN: 2049-3258

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