Transcription of Chapter 5 Measurement Operational Definitions
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Chapter 5 Measurement Operational Definitions
5-1. Chapter 5. Measurement Operational Definitions Numbers and Precision Scales of Measurement Nominal Scale Ordinal Scale Interval Scale Ratio Scale Validity of Measurement Content Validity Face Validity Concurrent Validity Predictive Validity Construct Validity Thinking Critically About Everyday Information Reliability of Measurement Test Retest Reliability Alternate Form Reliability Split-Half Reliability Factors That Affect Reliability Case Analysis General Summary Detailed Summary Key Terms Review Questions/Exercises 5-2. Operational Definitions An essential component of an Operational definition is Measurement . A simple and accurate definition of Measurement is the assignment of numbers to a variable in which we are interested.
impact of measurement, we need to understand the concept of a measurement scale. There are several different kinds of scales: nominal, ordinal, interval, and ratio. The distinction among scales becomes of particular importance when we conduct statistical analyses of data. Underlying statistical tests are various
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