Use the following information for questions:
Decide if the study is an observational study or an experiment.
-100 students were followed over a 6-month period. The number of students who took Echinacea (a herbal supplement) and the number who developed colds were recorded.
A) Observational Study
B) Experiment

Question

Use the following information for questions:
 Decide if the study is an observational study or an experiment.
-100 students were followed over a 6-month period. The number of students who took Echinacea (a herbal supplement) and the number who developed colds were recorded.
A) Observational Study
B) Experiment

Quizplus · Accepted Answer

This is an observational study because the researchers simply recorded information about the students' behavior (taking Echinacea) and outcomes (developing colds) without assigning any treatments or interventions.

Use the Following Information for Questions