Question

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 ________.

Answer 1

The answer is the independent variable.

Step-by-step explanation:

In experimental research, an independent variable is expected to affect a dependent variable.

An easy way to remember the difference is to say: independent causes change in dependent. In the example, the sugar diet changed the boys' hyperactivity level (the dependent variable).