A researcher wanted to determine whether eating sugary cereal for breakfast increased the aggression of second graders during their morning play period.After feeding a group of 20 students sugary cereal for breakfast she observed that, on average, the students committed 4.5 aggressive behaviors during their morning play period.In this example, the sample is:
A) the 4.5 aggressive behaviors.
B) the 20 students the researcher observed.
C) all second graders.
D) all second graders who ate sugary cereal for breakfast.

Question

Quizplus · Accepted Answer

The sample in this example refers to the 20 students that the researcher observed after feeding them sugary cereal for breakfast. This group was the specific sample that was chosen for the study, and the researcher collected data specifically from this group to draw conclusions about the possible effects of sugary cereal on aggression levels. Therefore, B is the best answer.

A Researcher Wanted to Determine Whether Eating Sugary Cereal for Breakfast