Variables are things that we measure, control, or manipulate in research. They differ in many respects, most notably in the role they are given in our research and in the type of measures that can be applied to them. I have previous knowledge about this subject matter, but it's only now that I fully understood it. At first, I really find it hard to classify variables as to ratio, nominal, interval, and ordinal. With constant practice and focus, I've finally familiarize the different classifications of variables and its uses. Now, who says statistics is a very difficult subject to learn? Well, not me...
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