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In surveys, individuals often asked to rate how they feel about an elected official on a numerical scale. Consider the quantitative variable “DJT” which represents the opinion of an individual on Donald J. Trump on a 0-100 scale, where 0 is extreme dislike up to 100 which is extreme like. Which of the following is correct regarding the variable DJT?
ANSWER:
This is correct. DJT is an interval variable since the value DJT=0 does not mean “no opinion”. In fact, it means that the person has a very strong opinion of extreme dislike.