A researcher is interested in studying the effects of a new natural sleeping aid on children ages 5–10. She will randomly assign half of the participants to take the sleeping aid an hour before their bedtime, while the other half will not take the sleeping aid. She will have parents record the number of hours their child slept each night over the course of four months. Which of the following elements is the dependent variable in this study?
Option #1: the natural sleeping aid
Option #2: the age of the participant
Option #3: the number of hours slept
(1 point)
Option #
is the dependent variable.