 We compared the quality of data collected from five different platforms, N-Turk, Qualtrics, an undergraduate student sample, Prolific, and Cloud Research. The quality of data was measured by the percentage of participants who provided meaningful responses as opposed to those who contributed noise. We found that Prolific and Cloud Research had higher percentages of meaningful responses than the other three platforms. Additionally, Prolific and Cloud Research had lower costs per high-quality respondent than N-Turk and Qualtrics. This article was authored by Benjamin D. Douglas, Patrick J. Ewell, and Marcus Brower.