Table 4: Reliability analysis: Internal consistency reliability and item-total correlation.
Factors |
Items |
Mean |
SD |
Corrected item total correlation |
Cronbach’s alpha |
Factor 1 (Physical and role)
|
Q1 |
2.41 |
1.210 |
0.539 |
0.881
|
Q2 |
2.33 |
1.212 |
0.643 |
||
Q3 |
1.41 |
0.862 |
0.548 |
||
Q4 |
1.54 |
0.890 |
0.456 |
||
Q6 |
1.97 |
1.119 |
0.694 |
||
Q7 |
1.90 |
1.129 |
0.703 |
||
Q8 |
1.61 |
0.912 |
0.627 |
||
Q10 |
2.13 |
1.039 |
0.724 |
||
Q11 |
1.91 |
1.181 |
0.508 |
||
Q12 |
2.18 |
1.122 |
0.682 |
||
Factor 2 (Emotions)
|
Q21 |
2.20 |
1.190 |
0.793 |
0.842
|
Q22 |
2.19 |
1.176 |
0.796 |
||
Q23 |
2.13 |
1.136 |
0.612 |
||
Q24 |
1.81 |
1.163 |
0.651 |
||
Q26 |
1.71 |
1.107 |
0.403 |
||
Q27 |
1.64 |
1.094 |
0.479 |
||
Factor 3 (Pain and cognition)
|
Q9 |
2.01 |
1.061 |
0.575 |
0.808 |
Q18 |
1.88 |
1.101 |
0.591 |
||
Q19 |
1.77 |
1.091 |
0.663 |
||
Q20 |
1.66 |
1.013 |
0.681 |
||
Q25 |
1.93 |
1.039 |
0.467 |
||
Factor 4 (Systemic side effect)
|
Q5 |
1.04 |
0.281 |
0.587 |
0.700
|
Q13 |
1.40 |
0.830 |
0.624 |
||
Q14 |
1.36 |
0.759 |
0.352 |
||
Q15 |
1.18 |
0.604 |
0.319 |
||
Q16 |
1.54 |
0.921 |
0.225 |
||
Q17 |
1.21 |
0.570 |
0.510 |