Table 2.

Content validity round 1 and 2 results for relevance, essentiality, and clarity.

	Round 1	Round 2
	Number of items (%)	Number of items (%)
Relevance
I-CVI 1	6/61 (9.8)	1/23 (4.3)
I-CVI 0.93	8/61 (13.1)	5/23 (21.8)
I-CVI 0.86	15/61 (24.6)	8/23 (34.8)
I-CVI 0.8	16/61 (26.2)	4/23 (17.4)
I-CVI 0.73	7/61 (11.5)	3/23 (13.1)
I-CVI 0.66	5/61 (8.2)	0/23 (0)
I-CVI 0.6	3/61 (4.9)	1/23 (4.3)
I-CVI 0.53	1/61 (1.7)	1/23 (4.3)
Essentiality
CVR 1	1/61 (1.7)	0/35 (0)
CVR 0.86	3/61 (4.9)	0/35 (0)
CVR 0.73	9/61 (14.8)	1/35 (2.9)
CVR 0.6	17/61 (27.8)	8/35 (22.8)
CVR 0.46	7/61 (11.5)	8/35 (22.8)
CVR 0.3	8/61 (13.1)	3/35 (8.6)
CVR 0.2	2/61 (3.3)	3/35 (8.6)
CVR 0.06	3/61 (4.9)	4/35 (11.4)
CVR − 0.06	6/61 (9.8)	3/35 (8.6)
CVR − 0.2	3/61 (4.9)	2/35 (5.7)
CVR − 0.3	2/61 (3.3)	2/35 (5.7)
CVR − 0.46	0/61 (0)	1/35 (2.9)
Clarity
Clarity 3	4/61 (6.5)	3/19 (15.7)
Clarity 2.93	13/61 (21.3)	3/19 (15.7)
Clarity 2.86	9/61 (14.8)	4/19 (21.1)
Clarity 2.8	9/61 (14.8)	1/19 (5.3)
Clarity 2.73	15/61 (24.6)	6/19 (31.6)
Clarity 2.67	4/61 (6.5)	1/19 (5.3)
Clarity 2.6	3/61 (4.9)	0/19 (0)
Clarity 2.53	3/61 (4.9)	1/19 (5.3)
Clarity 2.33	1/61 (1.7)	0/19 (0)