Answer:
The phrase "seven, plus or minus two" refers to the capacity of short-term memory.
Step-by-step explanation:
- Short term memory is also called as active memory or primary memory and refers to the information that we are currently thinking of.
- It generally lasts for short time of few seconds (20 seconds to 30 seconds) and are erased if not rehearsed time and again.
- Short term memory store up to 'seven', plus or minus two words at a time.
- In 1956, Miller performed an experiment and put forward the idea that 'short term memory' can store 5 to 9 items, but modern theory suggests that the information in 'short term memory' can be increased if the information are chunked together.