Digit Span Test Activity

Comparing Immediate Memory Capacity

A researcher administers a test where participants listen to a sequence of random numbers and must immediately repeat them back in the correct order. The length of the sequence increases with each successful trial. Participant X consistently recalls sequences of 8 numbers but fails at 9. Participant Y consistently recalls sequences of 4 numbers but fails at 5. Based solely on these results, what is the most accurate conclusion?

Change detection

The Magical Number Seven, Plus or Minus Two

Factors Affecting Short-Term Memory Retention

A friend quickly recites a list of 12 grocery items for you to remember. Without writing them down, you walk to the store. A minute later, you find you can only recall about 6 or 7 of the items. Which of the following best explains this common memory failure?

Free recall

Cued recall

Repeated recall