Help us record how gas stations display their fuel prices.
You'll be given a list of gas stations. For each one you'll open Google Street View, look at the station's price sign, and answer a short set of questions about what the sign shows. It takes about 1–2 minutes per station.
Before you start there's a short instruction walkthrough and a 4-question check. Your progress is saved automatically — you can stop and come back using the same link.
This task is part of an academic research study on how retail gas stations display their fuel prices. You will review publicly available Google Street View imagery and record what is visible on gas-station price signs. Please read this page before agreeing to take part.
For each assigned station you'll open Street View, look at the price sign, answer a few short questions about what it shows, and upload a screenshot. A typical station takes 1–2 minutes.
Your answers, the screenshots you upload, the time spent on each station, and the name or participant ID you enter. We do not collect anything from your device beyond what you submit in this tool, and we do not collect special categories of personal data.
Responses are used for research and quality control and are reported only in aggregate. Data is stored on a secure server accessible to the research team and retained for [STUDY TEAM: retention period — e.g. "5 years after study completion"], after which identifiers are removed or the data is deleted per the study protocol.
Risks are minimal — no greater than ordinary computer use. There is no direct benefit to you beyond payment for qualifying work (described below); the study helps researchers understand fuel-price advertising.
Taking part is entirely voluntary. You may stop at any time and skip any station without penalty. To withdraw, simply stop and contact the team at the address below.
Each station you label is also labeled by another rater. A small number of "gold" stations with known correct answers is mixed invisibly into your batch. Your accuracy on those — and your agreement with the other rater — determines whether your work qualifies for payment. The more careful and accurate, the more you're paid; random or careless answers won't qualify. Accuracy is what counts.
For questions about the study, contact [STUDY TEAM: PI name] at [STUDY TEAM: contact email]. For questions about your rights as a research participant, contact the [STUDY TEAM: IRB office name + email/phone] and reference protocol [STUDY TEAM: IRB protocol #].
Just confirming the instructions are clear. Answer all four to begin. You can retry if needed.
When a station shows two prices for regular gas (e.g., a cash price and a credit price), how would you rather record them?
Type the cash price and the credit price; we compute the difference. No math.
Recommended for most raters.
Type only the discount in dollars per gallon (e.g., 0.10). Faster, but you do the subtraction.
Pick this if you're comfortable doing quick mental arithmetic.
You can switch on each station with one click — this just sets the default.
You've finished every station in your set. Your work is saved.