Dr. Jones conducts a study examining the relationship between sugar consumption and activity level for 5-year-old children. A group of children is randomly separated into two groups. One group is given a sugary cereal for br

  

Dr. Jones conducts a study examining the relationship between sugar consumption and activity level for 5-year-old children. A group of children is randomly separated into two groups. One group is given a sugary cereal for breakfast and the other is given oatmeal. Activity level is then measured by observing the children during an outdoor play period to determine if there is any difference between the two groups.