 Students, now we are going to study the levels of measurement. We have completed the literature review as a research process and now we are going to study the how to measure the variable. So let's see what is the level of measurement. If we define a level of measurement, it is a system for organizing information in the measurement of variables into four levels from nominal level to ratio level. This is a system in quantitative research methodology in which we rank different variables on the basis of response category attributes and on the basis of a response category. We rank them out in four categories from nominal level to continuous level. In this, we see that some variables can be measured only at one level. There are some variables that can be measured at just one level, like at nominal level. Some variables can be measured at all levels. There are some variables from which we can measure all levels, may be at nominal level, may be at ordinal level, may be at interval level, and it can also be measured on a continuous level. So the nominal level variable is the primary level of variable. And the continuous level of variable is the optimum level of measurement. So if you have a variable in continuous shape then you can perform more statistical analysis as compared to the variable which you have in a nominal form or ordinal or interval form. And in ordinal or interval form, you can apply multiple statistical techniques to analyze the data.