What is the definition of Retention Studies?

Retention studies are like the secret sauce of a good party, but instead of making everyone dance and clap, they're all about figuring out why people stay or leave. They're the unsung heroes of data analysis, trying to keep the pesky attendees from drifting off to the "forgotten" queue.

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Now, here's an edgy example sentence using this buzzword: "The retention studies revealed that the partygoers' secret to staying put was not the DJ, but the coffee machine's constant 'Hey, you! Time to get your drinks!'"