Identify the following as an experiment or an observational study.
-In a clinical trial, 780 participants suffering from high blood pressure were randomly assigned to one of three groups. The first group received a blood pressure medication, the second group received a placebo, and the
Third group received no treatment. The change in blood pressure over a two-month period was recorded for
Each participant.
A) Observational study
B) Experiment

Question

Quizplus · Accepted Answer

This is an experiment because the researchers actively intervened by assigning participants to different groups (medication, placebo, no treatment) and controlled the conditions under which the observations were made.

Identify the Following as an Experiment or an Observational Study