You may need to find a tool to help you carry out your research. Finding a verified tool is challenging. Often, tools are owned by the authors who created them for use in a study and are not provided in the articles reporting on the study or in books that provide tools. Regardless of where you find a tool, you will most likely need to contact the authors to request written permission to use it in your work and possibly obtain a copy of it. The author(s) may request payment. If the author(s) do provide permission, keep that documentation. This guide offers suggestions on finding tools in the library and online.