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Chapter 11 - Measurement. After studying this chapter you will be able to understand: The distinction between measuring objects, properties, and indicants of properties; the similarities and differences between the four scale types used in measurement and when each is used; the four major sources of measurement error; the criteria for evaluating good measurement;. | Measurement Chapter 11 1 Learning Objectives Understand . . . The distinction between measuring objects, properties, and indicants of properties. The similarities and differences between the four scale types used in measurement and when each is used. The four major sources of measurement error. The criteria for evaluating good measurement. 2 Pull Quote “You’re trying too hard to find a correlation here. You don’t know these people, you don’t know what they intended. You try to compile statistics and correlate them to a result that amounts to nothing more than speculation.” Marc Racicot, former governor of Montana and chairman of the Republican Party 3 Review of Terms 4 Measurement Select measurable phenomena Develop a set of mapping rules Apply the mapping rule to each phenomenon 5 Characteristics of Measurement 6 Types of Scales Ordinal interval Nominal Ratio 7 Levels of Measurement Ordinal interval Ratio Nominal Classification 8 Nominal Scales Mutually Exclusive Collectively . | Measurement Chapter 11 1 Learning Objectives Understand . . . The distinction between measuring objects, properties, and indicants of properties. The similarities and differences between the four scale types used in measurement and when each is used. The four major sources of measurement error. The criteria for evaluating good measurement. 2 Pull Quote “You’re trying too hard to find a correlation here. You don’t know these people, you don’t know what they intended. You try to compile statistics and correlate them to a result that amounts to nothing more than speculation.” Marc Racicot, former governor of Montana and chairman of the Republican Party 3 Review of Terms 4 Measurement Select measurable phenomena Develop a set of mapping rules Apply the mapping rule to each phenomenon 5 Characteristics of Measurement 6 Types of Scales Ordinal interval Nominal Ratio 7 Levels of Measurement Ordinal interval Ratio Nominal Classification 8 Nominal Scales Mutually Exclusive Collectively Exhaustive Categories Classification Only 9 Levels of Measurement interval Ratio Nominal Classification Ordinal Order Classification 10 Ordinal Scales Nominal Scale Characteristics Order Implies greater than or less than 11 Levels of Measurement Ordinal Ratio Nominal Classification Order Classification interval Order Classification Distance 12 Interval Scales Ordinal Scale Characteristics Equality of interval Equality of distance between numbers 13 Levels of Measurement Ordinal interval Nominal Classification Order Classification Order Classification Distance Ratio Order Classification Distance Natural Origin 14 Ratio Scales Interval Scale Characteristics Absolute Zero 15 Examples of Data Scales 16 From Investigative to Measurement Questions 17 Sources of Error Respondent Instrument Measurer Situation 18 Evaluating Measurement Tools Criteria Validity Practicality Reliability 19 Validity Determinants Content Construct Criterion 20 Increasing Content Validity Content Literature Search Expert .
