A Likert scale is a commonly used survey tool that measures the level of agreement or disagreement with a statement or question. It typically consists of a series of statements or questions, with a range of response options from strongly agree to strongly disagree. This scale allows for a more nuanced understanding of attitudes and opinions, as it captures the degree of intensity rather than just a simple yes or no response. The Likert scale is named after its creator, psychologist Rensis Likert, and is widely used in research, market analysis, and customer feedback to gather valuable insights and data.