Answer:
The ordinal scale organizes data into mutually exclusive categories that are rank ordered based on a criterion, but the difference between ranks is not necessarily equal in value.
The interval scale has characteristics of ordinal scales, plus equal distance between any two adjacent units of measurement, and has no meaningful zero point.
The ratio scale is a measurement that contains all the characteristics of other scales and also has an absolute zero point determined by nature.
Anxiety is an emotion characterized by feelings of tension, worried thoughts and physical changes like increased blood pressure. People with anxiety disorders usually have recurring intrusive thoughts or concerns. They may avoid certain situations out of worry.