We used the third-party service TurkPrime (free to academic researchers) to anonymize respondents and to restrict survey dissemination to eligible and experienced mTurk workers. Participation was limited to those in the United States and those with a 95% approval rating after having completed more than 5000 human intelligence tasks (HITs in mTurk parlance) to maximize data quality. TurkPrime also batch-released the survey to ensure maximum visibility of the HIT. We varied the wording of the HIT titles (more vs less specific about survey content) to maximize participation. The screener survey initially paid US $0.01, but this was increased to US $0.02 to attract more respondents. The main survey paid US $0.10 with a US $0.70 quality bonus.