Table of Contents
Data and the Nature of Measurement
Research Variables
Measuring Variables in Research
Scales of Measurement
Nominal Scales
Ordinal Scales
Interval Scales
Ratio Scales
Controlling Measurement Error
Operational Definitions
Reliability
High Reliability
Low Reliability
Effective Range
Validity
High Validity
Low Validity
Scale Attenuation Effects
Objective Measurement
Summary
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Author: Mike Raulin
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