Nominal, ordinal, interval, and ratio are the four levels of measurements. If data can be arranged in a particular order, it falls under the ordinal level of measurement. However, the difference between the data values is meaningless or cannot be determined. For instance, if recently released movies are rated on a scale of one to five, it creates an ordered data set. Here, the movie with a five-star rating is better than the one with one star, but the difference between their ratings, four stars, has no meaningful information about the movie cast, story, or visual effects. The dichotomous values such as health or sickness, or innocent or guilty are also examples of the ordinal level of measurement. Here, questions like how much more innocent or more healthy than the other person, are meaningless.