Table 4.

Teachers with low complaints of vocal fatigue.

Low VF N = 397
Scale 1	Rho = 0.903	HT= 0.567	Qualified
Question	Mean	H T	Original VFI factor
14. My voice feels sore when I talk more	1.594	0.64	2
13. I experience throat pain at the end of the day with voice use	1.372	0.63	2
15. My throat aches with voice use	1.352	0.64	2
16. I experience discomfort in my neck with voice use	0.884	0.60	2
12. I experience pain in the neck at the end of the day with voice use	0.874	0.60	2
17. My voice feels better after I have rested	0.456	0.41	3
19. The hoarseness of my voice gets better with rest	0.446	0.36	3
Scale 2	Rho = 0.680	HT= 0.124	Did Not Qualify due to low HT
Question	Mean	H T	Original VFI factor
4. My voice gets hoarse with voice use	1.896	0.32	1
11. My voice feels weak after a period of voice use	1.625	0.41	1
5. It feels like work to use my voice	1.529	0.35	1
10. I find it difficult to project my voice with voice use	1.479	0.31	1
9. It is effortful to produce my voice after a period of voice use	1.433	0.40	1
Scale 3	Rho = 0.547	HT = 0.540	Did Not Qualify due to low Rho
Question	Mean	H T	Original VFI factor
1.I don’t feel like talking after a period of voice use	1.811	0.35	1
6. I tend to generally limit my talking after a period of voice use	1.554	0.38	1
8. I feel I cannot talk to my family after a workday	0.945	0.33	1
Items disqualified from scaling			Original VFI factor
Question
2. My voice feels tired when I talk more			1
3. I experience increased sense of effort with talking			1
7. I avoid social situations when I have to talk more			1
18. The effort to produce my voice decreases with rest			1