Starting question: How do school start times affect seniors? Sources: district start-time records, attendance logs, and first-period grade reports for 2019–2024. Which narrowing fits the sources?

Starting question: How does a town's mural program shape downtown life? Sources: mural permits, foot-traffic counts, and sales-tax receipts by block for 2018–2023. Which question is most answerable?

Starting question: Does banning phones help learning? Sources: one high school's phone-policy memo, classroom observation notes, and quarterly test averages before and after the policy. Which revision best narrows it?

Starting question: How do library renovations affect students? Sources: floor plans, checkout statistics, and a student survey about study-space use before and after one campus renovation. Which narrowing fits?

Starting question: How does drought coverage affect water use? Sources: local newspaper articles, city water-usage records, and restriction notices from summers 2020–2023. Which research question fits?

Starting question: What makes college essays successful? Sources: anonymized essays with outcomes from one scholarship program and judges' rubric comments. Which narrowing can the sources answer?

Starting question: How does public transit change a neighborhood? Sources: bus-route changes, stop-level ridership counts, and business-license records along one corridor from 2016–2022. Which narrowing is best?

A question asks whether cafeteria menu changes caused lunch participation to rise. Sources: monthly menu lists, meal participation counts, and a calendar of promotional events. Which limitation matters most?

A draft asks whether a new school logo improved community identity. Sources: board minutes approving the logo, merchandise sales, and yearbook photos; no surveys or interviews. What limitation should shape the answer?

A question asks whether a podcast episode changed listeners' opinions. Sources: the episode transcript, download totals, and comments posted during release week. Which conclusion avoids overreliance?

Research question: How did a museum's free-admission pilot affect visitor diversity? Sources: ticket counts by month, ZIP-code summaries, and staff marketing plans; no demographic survey. Which limitation is strongest?

Question: Did a peer-tutoring program improve ninth-grade writing? Sources: sign-in sheets, tutor training materials, and fall/spring rubric scores for participants only. What is the key limitation?

An investigation of uniforms uses discipline-referral counts before and after a policy, but that year a new dean changed referral procedures. What next step best addresses the limitation?

Your sources on a community garden include city permits and harvest logs, but your question asks whether the garden improved neighbors' relationships. Which next step is strongest?

Early source list for a paper on e-book access: e-book checkout data, device-loan records, and a librarian interview. The question asks whether e-books reduced print reading. What should you do next?

Your plan compares crime reports before and after new streetlights, but construction also closed two blocks for three months. What next step best protects the investigation?

Early findings: a school wellness app has usage logs, but privacy rules block access to students' health outcomes. How should the research question be revised?

Findings: newspaper archives cover a factory strike daily, but company payroll records for the strike months are missing. Which revision keeps the project answerable?

Findings: survey responses about homework stress come almost entirely from honors classes. How should the question change?

Findings: water-test data cover lead levels at fountains, but maintenance records do not say when pipes were replaced. Which revision is most responsible?