What does memory span refer to?

Memory span specifically refers to the ability to remember and accurately recall a sequence of information in the order it was presented. This concept is often tested through tasks that require an individual to repeat back lists of digits, words, or other items, emphasizing both the order and the retention of those items. The focus on the sequential recall of information distinguishes memory span from other cognitive abilities, such as understanding complex concepts or the durability of memory over time.

While options related to understanding complex concepts, retention duration, and long-term memory retrieval are important aspects of cognitive functioning, they do not specifically measure the capacity for recalling information in a sequence, which is the essence of memory span.