Concept explainers
For each of the following scenarios, identify which research strategy is used: descriptive,
a. Dr. Jones conducts a study examining the relationship between sugar consumption and activity level for 5-year-old children. Sugar consumption scores are obtained by interviewing each child’s parents and activity level is measured by observing the children during an outdoor play period.
b. Dr. Jones conducts a study examining the relationship between sugar consumption and activity level for 5-year-old children. Sugar consumption scores are obtained by interviewing each child’s parents. Based on the interview results, the children are divided into two groups: those who consume large amounts of sugar and those who eat relatively small amounts. Then activity level is measured by observing the children during an outdoor play period to determine if there is any difference between the two groups.
c. 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.
d. Dr. Jones conducts a study examining activity level for 5-year-old children. Each afternoon for 1 week, a group of children in a childcare center is observed during a 30-minute period while they play outdoors. Activity level for each child is recorded during the 30-minute period.
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Chapter 6 Solutions
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