Chapters 5 & 6

Chapters 5 & 6 - Construct validity logical...

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Conceptualization, Operationalization, Measurement Indexes, Scales, Typologies
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Conceptualization Conceptualization – process by which we specify what we mean when we use particular terms in research Indicators – observation we choose to consider as a reflection of a variable (i.e. attending religious services for religiosity ) Dimension – specific aspect of a concept
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Operationalization Extension of conceptualization that specifies the exact procedures that will be used to measure the attributes/indicators of variables
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Levels of Measurement Nominal Ordinal Interval Ratio
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Reliability and Validity Reliability (repeatability) Test-retest method Split-half method Validity (accuracy) Face validity – “at face value” Criterion-related validity (external) – “predictive validity”
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Unformatted text preview: Construct validity logical relationships among variables Content validity degree which a measure covers the range of meanings of a concept (exhaustive?) Indexes vs. Scales Index composite measure, assigning scores to individual indicators Scale composite measure of several items that reflect pattern and account for weighted difference in indicators (e.g. Likert scale) Example: political activism Indicators: signed political petition, write letter to public official, gave money to candidate, ran for office Index Validation Internal validation - item analysis External validation examine relationship between indicators...
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Chapters 5 & 6 - Construct validity logical...

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