An investigator uses two matched groups to compare effectiveness of two methods of teaching science. This study would come in the ambit of :

An investigator uses two matched groups to compare effectiveness of tw

1.	An investigator uses two matched groups to compare effectiveness of two methods of teaching science. This study would come in the ambit of :
A.	Experimental study
B.	Causal comparative study
C.	Descriptive survey study
D.	Phenomenological study
Answer» B. Causal comparative study

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An investigator uses two matched groups to compare effectiveness of two methods of teaching science. This study would come in the ambit of :

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