mc 3018 measurement

mc 3018 measurement - LEVELSOFMEASUREMENT

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LEVELS OF MEASUREMENT MC3018 Foundations of Media Research: Moodle 
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DEFINING MEASUREMENT Measurement is . . . The assignment of numerals to represent properties or characteristics of objects or events In short it is the substitution of numbers for something but this “something” is often abstract and invisible So, we must design a system of numbers – called a metric or scale – to reflect the properties So, we must design a system of numbers – called a metric or scale – to reflect the properties 2 MC3018 Foundations of Media
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PROPERTIES OF NUMBERS MC3018 Foundations of Media 3 1. Numbers are “ordered” Ex.: 1<2<3<4; 8>7>6>5 . . . 2. The difference/distances between numbers are equal 3. Numbers have a unique (zero) origin Isomorphism : A direct (I to I) correspondence between the variable and the scale
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PROPERTIES OF NUMBERS MC3018 Foundations of Media 4 Ideally, scales should reflect all the properties of numbers but sometimes this is not possible.
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This note was uploaded on 10/19/2011 for the course MC 3018 taught by Professor Jeong during the Spring '08 term at LSU.

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mc 3018 measurement - LEVELSOFMEASUREMENT

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