Are the following nominal, ordinal, interval or ratio data? Explain your answers.
(a) Temperatures measured on the Kelvin scale.
(b) Military ranks.
(c) Social security numbers.
(d) Number of passengers on buses from Delhi to Mumbai.
(e) Code numbers given to the religion of persons attempting suicide.
5. Discuss the relative merits and demerits of
(a) Rating vs. Ranking scales.
(b) Summated vs. Cumulative scales.
(c) Scalogram analysis vs. Factor analysis.
Expert Answer
Nominal variable are only qualitative in nature like good, bad. Ordinal intervals are quantitative in increasing or decreasing order of preferences. Interval data has some equally spaced intervals, while ratio data are most quantitative in
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