Although jason tends to goof off at his job most of the year, he always works extremely hard to impress his boss during the 6 weeks before his annual evaluation. he is apparently trying to take advantage of

The recency effect

Explanation:

The recency effect refers to our ability to remember something that has occured most recently or something that we have studied most recently.

Let us say you were memorising a list of things that you probably need to purchase it is very likely that you will remember those that you memorised last. This means we are more likely to remember something that has just happened than something that happened long ago

It relies on our short memory which is referred to as a primary active memory and is capable of retaining a small amount of our very recent memory.

Jason start to act well within 6 weeks before evaluation because he knows this memory will be more recent in his boss's mind and the boss will be able to easily remember it and this is likely to make him get great evaluation from the boss.