Educators have many decisions to make and it's important that they have the right data to inform those decisions and access to questionnaires that can gather that data. This guide, developed by REL Central and based on work done through separate projects with the Wyoming Office of Public Instruction and the Nebraska Department of Education, provides educators with a process for developing questionnaires. Principals, superintendents, state-level personnel, or other school or district personnel can use this guide when they need to make a decision about an education policy or practice but (1) lack the information needed to make that decision and (2) lack a preexisting questionnaire that can be used to gather the information. This guide can help these educators collect information about attitudes, perceptions, or factual information to inform their decisions.