Question

Dr. Xu wants to know if providing a study guide to students improves their test scores. To determine this, she gives students the midterm exam without a study guide. Before the final exam, she distributes a study guide to students who were randomly assigned to receive it. She then gives all students the final exam and finds that those who had the study guide had higher scores on the final exam. What type of study is this?

Answer 1

Answer:

The study carried out by Dr. Xu is a randomized controlled study.

Explanation:

• For the sake of determination of how the results of the students change by doing certain changes to the examination pattern, Dr. Xu devised that the change is considerably evident.
• Dr. Xu provided and intervention in the process of exam in the form of guides which helped the students to score better later. Hence, from the standard of conduct of the study, it can be said to be a randomized controlled study.