A randomized trial comparing efficacy of two regimens showed that difference is satisfically significant with p <0.001 but in reality the two drugs do not differ in their efficacy. This is an example of ?

Social & Preventive Medicine

A randomized trial comparing efficacy of two regimens showed that difference is satisfically significant with p <0.001 but in reality the two drugs do not differ in their efficacy. This is an example of ?

A study is to be conducted with regards to the fat content…

'There has been a gradual increase in number of non-communicable disease cases…

All of the following are done to remove Confounding except