A student has taken a summer job answering telephone sales orders. He quickly learns that it is much easier to remember a customer's 6-digit postal code and 7-digit phone number, but much more difficult to keep track of their 16-digit credit card numbers. According to the research of George Miller, he is having trouble with longer strings of numbers because:

Question

Quizplus · Accepted Answer

George Miller's research suggests that the average memory span for most people is about five to nine items, which explains why the student finds it difficult to remember the 16-digit credit card numbers.

A Student Has Taken a Summer Job Answering Telephone Sales