Table 2: Means and standard deviations of IWS (N=139).

Instrument Mean SD
IWS (1-7)^ 3.81# 0.37
Professional status (1-7) 4.52# 0.68
Pay (1-7) 4.27# 0.71
Autonomy (1-7) 3.95# 0.66
Organizational policy (1-7) 3.83# 0.71
Interaction (1-7) 3.34# 0.43
Task requirement (1-7) 3.07# 0.73
ASQ (16-32) 24.04 3.74
JIT (7-14) 11.22 2.11
ST (5-10) 6.93 1.46
GFU (4-8) 5.89 1.00

Note: IWS, Index of satisfaction scale; ASQ; Anxiety stress questionnaire. JIT, Job-induced tension; ST, Somatic tension; GFU, General fatigue and uneasiness.
^ Possible range of the overall scale and subscales in the parentheses.
# Mean score per item, indicating the total score of all respondents divided by multiplication value of the total numbers of both the respondents and items.