Matthew spent all day in the sun without sunscreen and got a really bad sunburn. Punishment Negative reinforcement

## Step 1<br />The problem presents a scenario where Matthew spends all day in the sun without sunscreen and gets a really bad sunburn. The question asks us to identify whether this situation is an example of punishment or negative reinforcement.<br /><br />## Step 2<br />To solve this problem, we need to understand the definitions of punishment and negative reinforcement in psychology. <br /><br />### **Punishment** is a process where an unpleasant stimulus is added following an undesirable behavior, with the intention of decreasing the likelihood of that behavior occurring again in the future.<br /><br />### **Negative reinforcement** is a process where an unpleasant stimulus is removed following a desirable behavior, with the intention of increasing the likelihood of that behavior occurring again in the future.<br /><br />## Step 3<br />In the given scenario, Matthew's behavior of spending all day in the sun without sunscreen results in an unpleasant outcome, which is the bad sunburn. This is an example of punishment, as the unpleasant stimulus (sunburn) is added following the undesirable behavior (spending all day in the sun without sunscreen).