Table 5. Convergent and divergent validity of the Vietnamese version of the UTBAS-6 scale (n=34)

Item Correlation coefficients
Frequency Belief Anxiety
Frequency (1) (2) (3)
1. I will never be successful because of my stuttering. 0.35 0.49 0.58
2. People will think I am incapable/incompetent due to my stutter. 0.52 0.49 0.52
3. People will think I am different. 0.29 0.35 0.47
4. I do not want to go out - people will not like me. 0.48 0.50 0.53
5. Even when I try to say something that is meaningful - I can’t say it straight away. 0.61 0.25 0.51
6. I will never finish my explanation - people will misunderstand me. 0.57 0.38 0.46
Belief (4) (5) (6)
1. I will never be successful because of my stuttering. 0.39 0.61 0.45
2. People will think I am incapable/incompetent due to my stutter. 0.48 0.57 0.37
3. People will think I am different. 0.29 0.45 0.37
4. I do not want to go out - people will not like me. 0.27 0.49 0.55
5. Even when I try to say something that is meaningful - I can’t say it straight away. 0.66 0.68 0.60
6. I will never finish my explanation - people will misunderstand me. 0.53 0.54 0.60
Anxiety (7) (8) (9)
1. I will never be successful because of my stuttering. 0.51 0.63 0.65
2. People will think I am incapable/incompetent due to my stutter. 0.51 0.64 0.71
3. People will think I am different. 0.39 0.59 0.61
4. I do not want to go out - people will not like me. 0.50 0.53 0.55
5. Even when I try to say something that is meaningful - I can’t say it straight away. 0.62 0.28 0.46
6. I will never finish my explanation - people will misunderstand me. 0.77 0.42 0.51