Which of the following types of research involve at least a minor degr

Which of the following types of research involve at least a minor degree of control by the researcher to implement the study treatment?

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

ESSAYBID ANSWER

ANS: D
Quasi-experimental studies have less control than experimental studies, but they do exhibit some degree of control.
Correlational research investigates the relationship between or among variables.
Descriptive research is the exploration of phenomena in real-life situations.
Experimental research is an objective, systematic, highly controlled investigation for the purpose of predicting and controlling phenomena.