六何法，又称6W分析法，被视为一篇新闻报导应该让读者知道的消息，即：

由这六个疑问词所组成的问句，都不是是非题，而需要实在的答案。一个完整的报导就需要这些答案。此法除了用来分析文章，也被用来教导作文的写作、提升阅读能力和问题的分析，在日常生活当中更无法离开六何法。有时“如何”不计在内，变成“五何法”。

A closed-ended question is a question format that limits respondents with a list of answer choices from which they must choose to answer the question. Commonly these types of questions are in the form of multiple choices, either with one answer or with check-all-that-apply, but also can be in scale format, where respondent should decide to rate the situation in along the scale continuum, similar to Likert questions.