Joffrey’s wife asked him to go to the store and buy milk, bacon, apples, juice, butter, and cereal. Joffrey did not write down the items and ended up only remembering to buy milk and bacon at the store. The fact that Joffrey only remembered milk and bacon demonstrates the effect.

primacy

Explanation:

Primacy effect: In psychology, the term "primacy effect" is described as a person's propensity to remember or recall a piece of information that is being presented at the starting of a specific list of information in a better way instead of the information that is being present at the latter of that particular list including end or middle. Primacy effect refers to one of the different cognitive biases that are related to the memory storage system as well as an individual's capability to store information.

In the question above, the given statement signifies that Joffrey is demonstrating the primacy effect.

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )

can you explain it better