Small incentives get more honest survey responses

Offer $50 for a survey and you'll get responses. Lots of them. Most will be from people who clicked through as fast as possible to get the money. The data will be garbage.

Offer a $5 coffee gift card and you'll get fewer responses. But the people who respond are doing it because the topic is relevant to them and the gift card is a nice bonus. Their answers are thoughtful because the incentive didn't attract mercenaries.

The economics seem backward but they're consistent. High-value incentives attract low-quality respondents. Low-value incentives filter for people who genuinely have an opinion. The best survey data comes from people who would have responded anyway - the incentive just pushed them over the edge.

There's also a format effect. A gift card to a specific store signals thoughtfulness. Cash signals transaction. "We'd love your feedback - here's a coffee on us" feels different from "Complete this survey for $50." The first is a relationship. The second is a job.