Miller's rule

Miller's rule is a guideline in psychology suggesting that the average person's short-term memory can typically hold about 7 (plus or minus 2) items at once. This means when trying to remember things like numbers or words, most people can comfortably handle around five to nine items before it becomes difficult to recall all of them accurately. The rule helps explain limits in human memory capacity and is useful in designing effective communication, such as chunking information into smaller groups to improve recall.