Answer: True- Observational learning
Step-by-step explanation:
Yes, the given answer is correct that the modification in the Vaughn's behavior is basically due to the observational learning process. Observational learning is one of the psychological concept that helps in describe the learning process by retain all the data or information.
The observation learning is one of the observing and modelling process in which we observe the behavior, expression and the attitude of other individual person.
According to the given question, the observational learning is one of the process that helps in illustrating the Vaughn's current behavior and their modifications.