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Chapter 11. Measurement. 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.

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Presentation Transcript
Chapter 11

Chapter 11

Measurement


Learning objectives
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.


Pull quote
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



  • Measurement
    Measurement

    Select

    measurable phenomena

    Develop a set of

    mapping rules

    Apply the mapping rule

    to each phenomenon



    Types of scales
    Types of Scales

    Nominal

    Ordinal

    interval

    Ratio


    Levels of measurement
    Levels of Measurement

    Nominal

    Classification

    Ordinal

    interval

    Ratio


    Nominal scales
    Nominal Scales

    Mutually Exclusive

    Collectively Exhaustive Categories

    Classification Only


    Levels of measurement1
    Levels of Measurement

    Nominal

    Classification

    Ordinal

    Classification

    Order

    interval

    Ratio


    Ordinal scales
    Ordinal Scales

    Nominal Scale Characteristics

    Order

    Implies greater than or less than


    Levels of measurement2
    Levels of Measurement

    Nominal

    Classification

    Ordinal

    Classification

    Order

    interval

    Classification

    Distance

    Order

    Ratio


    Interval scales
    Interval Scales

    Ordinal Scale Characteristics

    Equality of interval

    Equality of distance between numbers


    Levels of measurement3
    Levels of Measurement

    Nominal

    Classification

    Ordinal

    Classification

    Order

    interval

    Classification

    Distance

    Order

    Ratio

    Classification

    Distance

    Order

    Natural Origin


    Ratio scales
    Ratio Scales

    Interval Scale Characteristics

    Absolute Zero




    Sources of error
    Sources of Error

    Respondent

    Situation

    Measurer

    Instrument


    Evaluating measurement tools

    Validity

    Reliability

    Practicality

    Evaluating Measurement Tools

    Criteria


    Validity determinants
    Validity Determinants

    Content

    Criterion

    Construct


    Increasing content validity
    Increasing Content Validity

    Content

    Literature Search

    Etc.

    Expert Interviews

    Question Database

    Group Interviews


    Validity determinants1
    Validity Determinants

    Content

    Construct


    Increasing construct validity
    Increasing Construct Validity

    New measure of trust

    Known measure of trust

    Empathy

    Credibility


    Validity determinants2
    Validity Determinants

    Content

    Criterion

    Construct


    Judging criterion validity
    Judging Criterion Validity

    Relevance

    Criterion

    Freedom from bias

    Reliability

    Availability




    Reliability estimates
    Reliability Estimates

    Stability

    Internal

    Consistency

    Equivalence


    Reliability estimates1
    Reliability Estimates

    Stability

    Internal

    Consistency

    Equivalence


    Reliability estimates2
    Reliability Estimates

    Stability

    Internal

    Consistency

    Equivalence



    Practicality
    Practicality

    Economy

    Convenience

    Interpretability


    Key terms
    Key Terms

    • Internal validity

    • Interval scale

    • Mapping rules

    • Measurement

    • Nominal scale

    • Objects

    • Ordinal scale

    • Practicality

    • Properties

    • Ratio scale

    • Reliability

      • Equivalence

      • Internal consistency

      • Stability

    • Validity

      • Construct

      • Contents

      • Criterion-related


    Chapter 111

    Chapter 11

    Additional Discussion opportunities


    Snapshot tivo households
    Snapshot: Tivo Households

    Emmy winning shows

    Ad-skipping behaviors

    View involvement increases

    ad skipping


    Snapshot talent analytics
    Snapshot: Talent Analytics

    “Initially, many [HR] assessments were used primarily for pre-hire selection; today, assessment providers offer strategic resources for global organizations that want to build their overall knowledge of their employees beyond hiring—for development, promotion, internal mobility and succession planning.”


    Pull quote1
    Pull Quote

    “The only man who behaved sensibly was

    my tailor; he took my measurement anew

    every time he saw me, while all the rest

    went on with their old measurements and

    expected them to fit me.”

    George Bernard Shaw

    playwright and essayist


    Pulsepoint research revelation
    PulsePoint: Research Revelation

    32.5

    The percent of corporations using or planning to use cloud computing—using software and server space via Internet sources.


    Chapter 112

    Chapter 11

    Measurement



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