Which measure of memory retention is the most useful for assessing the strength of an implicit memory?

Implicit memory is occasionally called unconscious storage or automatic stored.  Implicit memory performance is enabled by past experiences, no matter how long ago they were

Explanation:

Implicit memory, procedural memory, allows us to do many physical daily activities, like walking and cycling, without thinking. Much of the implied memory is procedural in nature.

Priming is an additional, smaller, implicitly memory subset. In order to help someone another word or sentence in the future, it means using images, words, or other incentives.

Remember words when someone sings the first few words.

Ride a motorcycle.

Simple cooking tasks like boiling pasta water.

A Car Drive.

Take a familiar route every day, such as to work or the shop you frequently shop.

Take a shirt.

completion of routine activities, such as a carpenter sanding or chopping onions for a chef a familiar job.

Q:How is implicit memory measured?

Sorry there's no choice there on your Question.

answer; the federal reserve system;

because the early people found out about it.