COMMERCE 3MA3 Chapter Notes - Chapter 6: Level Of Measurement, Collectively Exhaustive Events, Quarter Pounder

• School: McMaster University
• Department: Commerce
• Course: COMMERCE 3MA3
• Professor: Mohammad Hossein Tajvarpour

Document Summary

Scale: a set of symbols or numbers so constructed that the symbols or numbers can be assigned by a rule to the individuals (or their behaviours or attitudes) to whom the scale is applied. Nominal scales: scales that partition data into mutually exclusive and collectively exhaustive categories. The ter(cid:373) (cid:374)o(cid:373)i(cid:374)al (cid:373)ea(cid:374)s (cid:862)(cid:374)a(cid:373)e-like,(cid:863) i(cid:374)di(cid:272)ati(cid:374)g that the (cid:374)u(cid:373)(cid:271)ers assig(cid:374)ed to o(cid:271)je(cid:272)ts or phe(cid:374)o(cid:373)e(cid:374)a are naming or classifying them but have no true number value; that is, the numbers cannot be ordered, added, or divided. The (cid:374)u(cid:373)(cid:271)ers are si(cid:373)ply la(cid:271)els or ide(cid:374)ti (cid:272)atio(cid:374) (cid:374)u(cid:373)(cid:271)ers a(cid:374)d (cid:374)othi(cid:374)g else. Ordinal scales: scales that maintain the labelling characteristic of nominal scales and have the ability to order data. Ordinal measurement is possible when the transitivity postulate can be applied. (a postulate is an assumption that is an essential prerequisite to carrying out an operation or line of thinking. ) Ordinal numbers are used strictly to indicate rank order.