Health and Quality of Life Outcomes

Table 3 Psychometric properties of smoking-specific measures, German and US current and former smokers

From: Evaluation of smoking-specific and generic quality of life measures in current and former smokers in Germany and the United States

	Item-Total correlations		Reliability^a
	Median	Range	Reliability^a
German Sample (N = 179)
Smoking Symptoms	0.42	0.12–0.58	0.71
Smoking Impact	0.44	0.33–0.62	0.72
US Sample (N = 259)
Smoking Symptoms	0.49	0.37–0.62	0.76
Smoking Impact	0.58	0.48–0.72	0.79

^aInternal consistency reliability computed using Cronbach’s alpha

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ISSN: 1477-7525

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