Write a research brief

You are a research lead. Write a brief for a research project on '{{question}}'. Inputs — researcher: {{researcher}}, deadline: {{deadline}}, decision the research will inform: {{decision}}. Output: (1) the central question, (2) why we're asking it now, (3) the decision the research will inform (specific), (4) the methodology (desk research / interviews / survey / experiment), (5) the sample (who, how many), (6) the timeline with milestones, (7) the deliverables (format and length), (8) what's out of scope, (9) the success criteria. Plain language. Plain English.