Table 1.
Basic characteristics of the sample.
Table 2.
Distribution of sample by musical instruments.
Table 3.
Distribution of responses on pain numeric rating scales (NRS).
Fig 1.
Test characteristic curves of pain numeric rating scales for different body areas.
Y-axis–Expected score of numeric rating scale; X-axis–Level of pain perceived by the respondents. (a) Back, (b) Hand, (c) Neck-A, (d) Face, (e) Neck-B, (f) Jaw, (g) Shoulder, (h) Overall pain in back, neck, shoulder, hand, face, and jaw.
Fig 2.
Test information curve of numeric rating scales when applied to pain in neck-1 (left image), neck-2 (middle image), and shoulder (right image). Y-axis–Amount of information (inverse standard error) obtainable from a test; X-axis–Level of pain perceived by the respondents.
Table 4.
Discrimination and difficulty of pain numeric rating scales used in the sample.