The ability of a scale or measuring instrument to measure what it is intended to measure is called? A) Reliability B) Validity C) Practicality D) None of these Related MCQs: A type of criterion validity whereby a new measure correlates with a criterion measure taken at the same time is considered. “Richter Scale” is used for measuring: Which of the following instrument used for measuring the humidity in air? The semantic differential scale is used mainly to measure: