Question

*8. Which feature cannot be found in
randomized controlled trials? ()
O Analysis using OR
Blind method in experiment
Imposed artificially intervention
measures
Randomized grouping
Established a control group​

Answer 1

Answer:

The key feature is random allocation to the groups, and apart from this random allocation to the comparison groups, the elements of a RCT are no different from the components of any other type of prospective, comparative, quantitative study.

...

expensive in terms of time and money;

volunteer bias;

ethical issues at times.