You want to determine if eating more fruit reduces a person's chance of developing cancer. You watch people over the years and a
sk them to tell you how many servings of fruit they eat each day. You then record who develops cancer. Is this a cross-sectional, retrospective, or prospective study?
Also known as a cohort study, the type of study that follows a certain group of individuals over time to reach conclusions about the data gathered at a future date is called a prospective study. Since the aim of this study is to see who develops cancer in the future, this is a clear example of a prospective study.
