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What do sequential variables refer to? This problem may be often seen in our daily study or work. I hope you can gain a lot from this question. The following is the reference content that the editor brings to you, let's take a look at it!

What are sequential variables?

Sequential variable (ordinal variable) is also called "rank variable". One of the psychological variables. A variable whose value only indicates the order of the attributes of things in terms of quantity and number. It can be observed by sequential scale. The distance between the values is not necessarily equal, nor does it have a certain proportional relationship. Generally speaking, statistical methods such as median, percentile, rank correlation coefficient, Y0 test, Kendall harmony coefficient and rank analysis of variance can be used among sequential variables. For example, all the athletes will be ranked as "first" and "second" according to the time it takes to reach the finish line. Obviously, the time difference between the first place and the second place is not equal to the time difference between the second place and the third place, it only shows the sequential relationship between them, and it has neither absolute zero nor proportional statement.

If the students are ranked in the 100-meter race, the fastest one will be the first, the second fastest will be the second, and so on. Are sequential variables. For example, the level of education, from small to large in turn for primary school, junior high school, high school and so on. This kind of data can not be statistically processed by simple four operations.

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