Table 2. Cronbach.

Item No.	Item in English Language Version	Cronbach's Alfa Coefficient	Pearson Correlation
1	Need to blow nose	0.56	0.62
2	Sneezing	0.56	0.61
3	Runny nose	0.50	0.57
4	Nasal obstruction	0.49	0.55
5	Loss of smell or taste	0.60	0.67
6	Cough	0.46	0.53
7	Post-nasal discharge	0.41	0.48
8	Thick nasal discharge	0.28	0.35
9	Ear fullness	0.44	0.48
10	Dizziness	0.42	0.46
11	Ear pain	0.61	0.67
12	Facial pain/pressure	0.57	0.63
13	Difficulty falling asleep	0.57	0.62
14	Waking up at night	0.66	0.71
15	Lack of a good night’s sleep	0.60	0.66
16	Waking up tired	0.44	0.50
17	Fatigue	0.38	0.44
18	Reduced productivity	064	0.70
19	Reduced concentration	0.44	0.49
20	Frustrated/restless/irritable	0.38	0.45
21	Sad	0.29	0.37
22	Embarrassed	0.74	0.80