B Afghanistan is one if the worlds least developed countries
Answer:
Primary
Explanation:
In psychology and operant conditioning, the term Primary reinforcer refers to the biological reinforcers that determine our behavior. In other words, they are part of our nature and reinforce behaviors in a natural way without a process of learning from us, since they are, by themselves, satisfying a biological need. Therefore, they have innate reinforcing qualities. Examples of these reinforcers would be: food, sex, water, sleep.
Therefore, in operant conditioning, a primary reinforcer is innately reinforcing, often by satisfying a biological need.
Answer:
Forgetting curve
Explanation:
Ebbinghaus invented the forgetting curve by using different ways of savings at various time intervals. Ebbinghaus modern memory research began by using meaningless strings of letters to study the capacity of our memory system. The amount of previously saved letters decreases rapidly, but then reaches a plateau after which a decrease in percentage savings is minimal. We start by forgetting rapidly without practice and then at a certain point forgetting occurs a much lesser rate. With practice, the forgetting curve would look different.
