Dr. Jiminez investigated the influence of snacking on the onset of sleep in preschool children. One group of preschoolers ate a candy bar prior to bedtime, and the other group ate nothing. Time until the onset of sleep was recorded for each child. In this experiment, eating or not eating the snack is the __________ variable, and the time until the onset of sleep is the __________ variable.

Question

Quizplus · Accepted Answer

Eating or not eating the snack is the independent variable because it is the variable that is being manipulated by the experimenter. The time until the onset of sleep is the dependent variable because it is the variable that is being measured and is expected to change as a result of the manipulation of the independent variable.

Dr Jiminez Investigated the Influence of Snacking on the Onset