Procedures for data simulation
1. Alpha 95% CIs by both observed and expected scores
The present study built on the data that were collected
from the 115 patients answering the aforementioned 28
items on the EORTC QLQ-C30. As mentioned above, we
investigated 95% CIs from the perspective of Alpha by
examining different person numbers, such as 115, double(
230) and trible(445) with a SPSS syntax procedures
(see Additional file 3) referring to both observed and
expected scores on EORTC QLQ-C30 to examine any difference
between scenarios