Answer:
Owen is experiencing a proactive interference while Pippa is experiencing a retroactive interference.
Step-by-step explanation:
To start with, interference in psychology explains why and how forgetting happen in long-term memory.
In the case of Owen, he is experiencing proactive interference. This kind of interference occurs when an individual has problems with recalling new information such as phone number because he/she has older information (like an old phone number) stored in memory.
In reverse, Pippa is experiencing a retroactive interference. This kind of interference occurs when an individual has problems with recalling older information because of new information recently learnt or stored in memory