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You have to pay them something to show up, answer questions, fill out journals, etc. Otherwise participation rates will be super low and very biased.
by recursivecaveat 2y ago
You have to pay them something to show up, answer questions, fill out journals, etc. Otherwise participation rates will be super low and very biased.
- red-iron-pine 2y agoesp. for the homeless, who don't have the means, energy, or motivation, to schlep across town to do questions. some might have a cellphone, but why bother answering questions for someone who isn't going to help you?