A researcher is interested in investigating the relationship between sugar consumption and weight gain for high school students. Fifteen volunteers were randomly assigned to one of two groups. The first group contained six volunteers who were put on a low-sugar diet. The second group consisted of the remaining nine volunteers, who were put on a diet in which sugar constituted approximately 15% of their calories consumed. After eight weeks, the change in weight was recorded for each of the volunteers.
Which type of study is this?

Question

Quizplus · Accepted Answer

This is a randomized comparative experiment because the participants were randomly assigned to either the low-sugar diet or the 15% sugar diet group, and the researcher is interested in investigating the relationship between sugar consumption and weight gain.

A Researcher Is Interested in Investigating the Relationship Between Sugar