Answer:
The best answer to fill in the blank in this statement would be: Dr. Ivy is MOST likely working from a(n): evolutionary perspective, to explain the way that children react to environmental experiences based on their genetic tendencies.
Step-by-step explanation:
There have been many theories created throughout time to explain why and how, people, be it children or adults, react and act according to the environment in which they are. In this particular case, Dr. Ivy is basing his knowledge and his comprehension of why a child acts in one way to the environment, while another may act completely differently, given the same environment, on the role that genetics plays in behavior shaping. As such, to him, it is a child´s genetic make-up what determines how a child will react to a specific environment, and not other factors, or aspects. This is characteristically of those who favor the evolutionary perspective.