MacFarlane (1975) tested how well newborns could smell by placing a breast pad from each baby's mother next to its cheek and the breast pad of another baby's mother next to the baby's other cheek. MacFarlane then measured which direction the babies turned most frequently. What was the independent variable in this study?

Question

Quizplus · Accepted Answer

The independent variable was whether the breast pad belonged to the baby's mother or another baby's mother, as this is the variable that was manipulated to observe its effect on the dependent variable, which is the direction the baby turned.

MacFarlane (1975) Tested How Well Newborns Could Smell by Placing