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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

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Snapshot: Tivo Households

Emmy winning shows

Ad-skipping behaviors

View involvement increases

ad skipping

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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

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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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