Victor holds doors open for attractive female classmates because they usually smile when he does so. Victor's behavior is maintained by Secondary reinforcement
Explanation:
Secondary reinforcement refers to the situation when the stimulus reinforces a behavior after getting associated or connected to the primary reinforcer. When a dad gives chocolates to the toddler and he responds by saying 'bye'. The toddler has received the treat which is the primary reinforcer and also the verbal farewell which is the secondary reinforcer.
Primary reinforcement involves a reward that fulfills a biological need. Secondary reinforces work through association with primary reinforcers. Secondary reinforcers are mostly categorized as social reinforcers, activity reinforcers and token reinforcers. Token reinforcers will mostly be in the form of gifts.
Answer:
His molars are coming in, and he is teething
Explanation:
Early Formation of molars and Teeth tend to occurs between 12-18 months of age. For infants, this process create uncomfortable feeling in their mouth or even a painful sensation.
This pain is what constantly wake the infant up and cry in the middle of the night. The pain will also explain why the infant is acting really fussy during the day. It heavily affect their mood but the infant hasn't develop enough ability to communicate the problem to the parents.
Rome and Carthage were involved in three wars known as the Punic war