What is a written document containing questions to gather information called?

A written document containing questions designed to gather information is known as a questionnaire. This tool is specifically crafted to elicit detailed responses from participants on various topics, allowing researchers or organizations to collect data systematically.

Questionnaires often include a mix of open-ended and closed-ended questions, enabling the collection of both qualitative and quantitative data. They are used in a variety of fields, such as market research, academic studies, and customer feedback, making them a versatile tool for gathering insights and opinions.

While surveys share similarities with questionnaires, they are often broader in scope and may include methodologies beyond just written questions, such as interviews or focus groups. Reports and reviews are different in nature; reports summarize findings or results from data analysis, while reviews typically assess or evaluate existing literature or works related to a certain subject. Thus, the specificity and purpose of a questionnaire make it the correct answer for this question.