The answer to your question is ( true )
I'm pretty sure its from the stomach.
The most accurate statement is Inclusion and exclusion criteria are always needed in some form.
Inclusion criteria are the prospective subjects characteristics that should be taken into consideration in the study.
Exclusion criteria are set of predefined definitions commonly used to identify subjects who will not be included or those characteristics that disqualify prospective subjects for the study to be included
The study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations.
