Translation, and validation of Dysphagia Outcome and Severity Scale (DOSS): Swedish version

BMC Research Notes

Table 3 Expert panel’s Content Validity Index (CVI) ratings

DOSS item	(1) CVI rating for linguistic equivalence			(2) CVI understandability/applicability rating
	Review 1	Review 2	Difference rating 1–2 p-value	Review 1	Review 2	Difference rating 1–2 p-value
DOSS Level 7	0.91^*	1.00^*		0.91^*	1.00^*
DOSS Level 6	0.82^*	0.91^*		0.64	0.82^*
DOSS Level 5	1.00^*	1.00^*		1.00^*	1.00^*
DOSS Level 4	1.00^*	1.00^*		0.91^*	0.91^*
DOSS Level 3	1.00^*	1.00^*		0.82^*	1.00^*
DOSS Level 2	1.00^*	1.00^*		0.73	0.82^*
DOSS Level 1	1.00^*	1.00^*		0.91^*	1.00^*
Scale-CVI (Average)	0.96	0.99	p = 0.622	0.84	0.94	p = 0.015

The calculation of Item-CVI based on number of experts who rated each item as 3 or 4. DOSS Dysphagia Outcome Severity Scale. * = Minimum recommended Item-CVI > 0.79, as per Polit et al., [19]. Minimum recommended Scale-CVI/Average = 0.90 or higher [19]
Bold value indicates the statistically significant

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