In the context of scales of measurement, ratio scales have an absolute zero point that indicates absence of the variable being measured.
A ratio scale is a quantitative scale where there is a true zero and there are equal intervals found between neighboring points. A zero on a ratio scale indicates that there is a total absence of the variable you are measuring.
Ratio scale is considered the most powerful scale, as it includes the properties possessed by less powerful scales. A ratio scale can be used to rank objects by magnitude, use numbers to identify objects, compare intervals.
Hence, ratio scales have an absolute zero point which indicates the absence of the variable being measured.
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