Measurement

# Measurement - Measurement Outline for Measurement What is...

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Measurement

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Outline for Measurement What is Measurement? Operationalization Internal Validity Construct Validity Transitional Criterion-related Nomological Networks
What is Measurement? Measurement is the process of observing and recording the observations that are collected as part of a research effort - Trochim The assumption that social and health phenomena can be accurately and wholly represented by quantitative or mathematical properties. Assignment of numbers to represent social and physical reality – Norman Campbell, physicist.

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Classification The basic element of measurement Categories of a measure must be mutually exclusive and similar (all men) within and different (men and women) between categories Mathematical principles require certain assumptions about the levels or properties of measurement
Operational Definitions Propositions consisting of theoretical concepts are not directly testable. Operational definitions spell out the procedures used in measurement. Concepts often have more than one operational definition.

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Operational Definitions ( Blalock 1960 ) Operational definitions are a set of instructions/
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## This note was uploaded on 08/26/2009 for the course BB H 310W taught by Professor Saltsman,brian during the Spring '07 term at Penn State.

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Measurement - Measurement Outline for Measurement What is...

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