Short-term memory

The short-term memory is estimated between 5 and 9 elements, check it.

The short-term memory is the capacity for holding a small amount of information in mind in an active, readily available state for a short period of time

The duration of short-term memory is estimated at several seconds, and a commonly cited capacity is figure of 7 ± 2 elements.

With this application you can check whether you are above or below average which is seven elements. The more you practice also improve your ability.