Answer:
Brain Scanning Technique Results
Explanation:
Based on the information provided within the question it can be said that the developmental psychologist can rely on Brain Scanning Technique Results. This is because these results have found out that the facial features of infants activate a specific part of the brain called the "fusiform gyrus" within an interaction. Therefore they can explain what the children's faces mean and how they affect the brain.
How long it stands is the independent variable
It's a handle that is the thing you pull to turn on the shower
