Question

A researcher is interested in comparing five brands of acid reflux medications to see if one brand is better than the rest at relieving the symptoms of acid reflux, primarily heartburn. The 150 participants, who suffer from acid reflux, were randomly assigned to five different groups. Each group would receive one of the five brands of acid reflux medications. The improvement in heartburn of these 150 people is recorded and compared after 8 weeks of taking the medicine. What is the factor being studied in this research?

1) Brands of acid reflux medications
2) Improvement in heartburn
3) Symptoms of acid reflux
4) Random assignment of participants

Answer 1

The factor being studied in this research is the brands of acid reflux medications.

Step-by-step explanation:

The factor being studied in this research is 1) Brands of acid reflux medications. The researcher is comparing five different brands of acid reflux medications to see if one brand is better than the rest at relieving the symptoms of acid reflux, primarily heartburn. The 150 participants were randomly assigned to the different medication groups, and their improvement in heartburn is recorded and compared after 8 weeks of taking the medicine.