Which of the following is an example of reinforcement?

Providing praise after a child completes a task is a prime example of reinforcement because it directly strengthens a desired behavior. Reinforcement, in behavioral terms, refers to any consequence that increases the likelihood of a behavior being repeated in the future. When a child is praised for completing a task, it serves as positive feedback, motivating them to engage in similar behaviors again to receive that praise.

This method is grounded in the principles of operant conditioning, where positive reinforcement encourages the continuation of a behavior by adding a favorable outcome—in this case, praise. Such reinforcement can enhance a child's self-esteem and increase their willingness to tackle new tasks, knowing they will receive acknowledgment for their efforts. The reinforcement aspect is key, as it is a critical component of promoting positive behavioral change in educational and therapeutic contexts.