Based on her review of relevant scientific studies, Dr. Tanaka believes that there is a relationship between the frequency of a baby's crying and whether it was nursed at set intervals or on a demand schedule. If this belief were tested by experimentally manipulating feeding schedules, the feeding schedule would be called the __________.

Question

Quizplus · Accepted Answer

The feeding schedule is the variable that is being manipulated, so it is the independent variable. The frequency of crying is the outcome being measured to see if it is affected by the feeding schedule, so it is the dependent variable. Extraneous variables are other factors that could potentially influence the outcome but are not being studied, and control factors are constants that are kept the same throughout the experiment to minimize the influence of extraneous variables.

Based on Her Review of Relevant Scientific Studies, Dr