deternine whether the study depictcts an observation or an e

deternine whether the study depictcts an observation or an experiment

fifty patients with liver disease are divided into two groups . one group is treated with an experimental drug. the other is not .after two months , both groups are questioned about their enegy level

is the study an observational or experimental

athe study is an experimental because the study examines individuals in a sample but does not try to influence variable of interest

bthe study is an experimental because the researchers control one variable to determine the effect on the response group

Solution

the study is an experimental because the researchers control one variable to determine the effect on the response group

Note that it was in hands of researcher to set the variables, i,e, to treat one group with drug and not other group. This kind of control is due to experiment.