Which of the following is the correct order of measurement scales in increasing order of accuracy, precision and number of operations used?
Answer (Detailed Solution Below)Option 4 : Nominal, ordinal, interval, ratio Free 15 Questions 30 Marks 15 Mins Measurement is the process of assigning numbers to objects and events in accordance with a set of rules. To grasp the full impact of measurement, it is important to understand the concept of a measurement scale. There are several different kinds of scales: nominal, ordinal, interval, and ratio. Scales of Measurement: 1) Nominal (Label or category):
2) Ordinal (Rank order):
3) Interval (Rank order + Equal Intervals):
4) Ratio (Rank order + Equal Intervals + Absolute zero)
Frequency counts that represent the number of times that a particular event occurred are a common example of measurement on a ratio scale. But be careful not to confuse this use of frequency with the use of frequency as a summary statistic for data measured on a nominal scale (how many times observations fit a particular category). Decision tree to determine the appropriate scale of measurement: Hence, the Nominal < ordinal < interval < ratio is the correct order of measurement scales in increasing order of accuracy, precision, and the number of operations used.
The distinction among scales becomes of particular importance when we conduct statistical analyses of data. Underlying statistical tests are various
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