An experimenter asks a group of 6-year-old children to try to repeat lists of two to eight numbers or letters immediately after hearing them. Five years later the same experimenter asks the same children, now 11 years old, to repeat new lists of two to eight numbers or letters. This is an example of a

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This is a longitudinal study because it follows the same group of children over a period of time (5 years) to observe changes in their ability to repeat lists of numbers or letters, which is a measure of short-term memory.

An Experimenter Asks a Group of 6-Year-Old Children to Try