In which type of research is there high researcher control, random sam

In which type of research is there high researcher control, random sampling, and controlled setting?

a. Descriptive
b. Correlational
c. Experimental
d. Quasi-experimental

ESSAYBID ANSWER

ANS: C
Experimental design is considered the most powerful quantitative design because of the rigorous control of variables.
Descriptive research is the exploration of phenomena in real-life situations. Experimental design is considered the most powerful quantitative design because of the rigorous control of variables.
Correlational research investigates the relationship between or among variables. Experimental design is considered the most powerful quantitative design because of the rigorous control of variables.
Quasi-experimental studies have less control than experimental studies, but they do exhibit some degree of control. Experimental design is considered the most powerful quantitative design because of the rigorous control of variables.