Lecture 3 Measurement

Lecture 3 Measurement - Ratio Special case: Dummy variables...

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Measurement
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Measurement The process of systematically recording the  properties of a theoretically relevant concept E.g., democracy, intelligence, etc.
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Measurement The process of systematically recording the  properties of a theoretically relevant concept E.g., democracy, intelligence, etc. Qualitative measurement
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Measurement The process of systematically recording the  properties of a theoretically relevant concept E.g., democracy, intelligence, etc. Qualitative measurement Quantitative measurement 
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Levels of Measurement
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Levels of Measurement Nominal
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Levels of Measurement Nominal Ordinal
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Levels of Measurement Nominal Ordinal Interval
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Levels of Measurement Nominal Ordinal Interval
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Unformatted text preview: Ratio Special case: Dummy variables Levels of Measurement: Another Way Discrete Fixed units Usually nominal or ordinal, but can be interval or ratio if they exhibit fixed units Levels of Measurement: Another Way Discrete Fixed units Usually nominal or ordinal, but can be interval or ratio if they exhibit fixed units Continuous Full use of the number line (i.e., fractions are meaningful) Measurement Issues Reliability Stable Consistent Measurement Issues Reliability Stable Consistent Validity Content validity Criterion validity Construct validity Measurement Issues Reliability Stable Consistent Validity Content validity Criterion validity Construct validity Measurement Error Random Systematic...
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Lecture 3 Measurement - Ratio Special case: Dummy variables...

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