What do I have to know about Learning Theory and Developmental Psychology? A number of different learning theories emerged to explain how and why people behave the way that they do. The learning theories of development are centered on the environmental influences on the learning process. Such environmental influences include associations, reinforcements, punishments, and observations. https://www.verywellmind.com/learning-theories-in-psychology-an-overview-2795082
In the early 1930s the distinction between learned and inherited behaviour seemed clearer than it does now. The view that any bit of behaviour either was learned or simply developed without learning seemed straightforward. Studies based on these expectations led investigators to conclude that rat-killing behaviour among cats is learned rather than instinctive, that human fears are all acquired, or that intelligence is completely the result of experience. Learning theorists were saying then that most behaviour is learned and that biological factors are of little or no importance. Forty years later this position seemed grossly untenable. The once-implied sharp distinction between learned and inherited behaviour had become badly blurred. https://www.britannica.com/science/learning-theory/Stages-of-learning
You need to keep this overview in mind as you learn the following key studies: