To determine if sugar-rich diets affect hyperactivity in kids,a researcher prepared two daily menus that children would receive for a 30-day period.A high-sugar diet was given to the boys,while the girls had a menu that seemed identical but was not a high sugar diet.At the end of 30 days,the boys and girls were evaluated to determine their levels of hyperactivity.In the study,the high-sugar diet is the ________.
A)placebo
B)independent variable
C)dependent variable
D)control group

Question

Quizplus · Accepted Answer

In a scientific experiment, the independent variable is the variable being manipulated by the experimenter. In this case, the high-sugar diet is the variable being manipulated, making it the independent variable being tested for its effect on hyperactivity.

To Determine If Sugar-Rich Diets Affect Hyperactivity in Kids,a Researcher