It’s usually easier to remember a phone number if it has a dash in the middle—for example, 606-8042 rather than 6060842. What memory technique is this an example of?

Chunking means grouping separate pieces of information into meaningful units so they’re easier to remember. The dash divides the phone number into two groups, 606 and 8042, making it easier to recall than one long string of digits. So the technique is chunking.

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