Table 2 Mokken scale `Role-Emotional’ from the SF-36 (n = 202)

3

Have you felt so down in the dumps that nothing could cheer you up?

4.79

0.44 (0.060)

2

Have you been a very nervous person?

4.56

0.38 (0.054)*

6

Have you felt downhearted and blue?

3.52

0.53 (0.045)

4

Have you felt calm and peaceful?⁺

3.97

0.41 (0.059)

8

Have you been a happy person?

3.66

0.44 (0.050)