Health and Quality of Life Outcomes

Table 7 Internal consistency and test-retest reliability of the overall instrument and the three domains of the Sinhalese MacNew

From: Psychometric evaluation of the Sinhalese version of MacNew Heart Disease Health Related Quality of Life Questionnaire in patients with stable angina

Internal Consistency	No. of items	Cronbach's α
Global	26	0.92
Emotional	14	0.91
Physical	13	0.85
Social	13	0.86
Test-retest reliability	ICC^a
Global	0.99
Emotional	0.99
Physical	0.99
Social	0.99

^aIntraclass Correlation Coefficient

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ISSN: 1477-7525

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