This document discusses measurement and the key concepts involved. It covers the four scale types - nominal, ordinal, interval, and ratio - and explains their characteristics and when each is used. The four major sources of measurement error and criteria for evaluating good measurement are also outlined. Key terms related to measurement validity, reliability, and practicality are defined.

1. Welcome to
[ ]Dr. Myrza Rahmanita, SE, M.Sc
Measurement
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MEASUREMENT

2. FIRST LET’S WE SEE ABOUT
The Learning Objectives

3.  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.
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4. MEASUREMENT

5. 11-5
Select
measurable phenomena
Develop a set of
mapping rules
Apply the mapping rule
to each phenomenon
As Shown in the diagram below …

6. CHARACTERISTIC
of Measurement

7. 11-7
As Shown in the explanation below …

8. LEVEL
of Measurement

9. 11-9
Ordinal
Interval
Ratio
Nominal
Classification
As Shown in the diagram below …

10. TYPES
of Scales

11. 11-11
Ordinal
Interval
Nominal
Ratio
As Shown in the diagram below …

12. NOMINAL
Scales

13. 11-13
MUTUALLY EXCLUSIVE AND,
COLLECTIVELY EXHAUSTIVE CATEGORIES,
EXHIBITS ONLY CLASSIFICATION
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14. LEVEL
of Measurement

15. 11-15
Ordinal
interval
Ratio
Nominal
Classification
Order
Classification
As Shown in the diagram below …

16. ORDINAL
Scales

17. • Characteristics of nominal scale
•Order
•Implies greater than or less than
11-17
As Shown in the explanation below …

18. LEVEL
of Measurement

19. 11-19
Ordinal
interval
Ratio
Nominal
Classification
Order
Classification
Order
Classification Distance
As Shown in the diagram below …

20. ORDINAL
Scales

21. • Characteristics of nominal and ordinal
scales
• Equality of interval.
• Equal distance between numbers
11-21
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22. LEVEL
of Measurement

23. 11-23
Ordinal
interval
Ratio
Nominal
Classification
Order
Classification
Order
Classification Distance
Natural Origin
Order
Classification Distance
As Shown in the diagram below …

24. RATIO
Scales

25. Ratio Scales
11-25
Characteristics of nominal, ordinal, interval scales
Absolute zero

26. FROM INVESTIGATE
to Measurement Question

27. 11-27
As Shown in the diagram below …

28. SOURCES
of Error

29. 11-29
Respondent
InstrumentMeasurer
Situation
As Shown in the diagram below …

30. EVALUATING MEASUREMENT
Tools

31. 11-31
Criteria
Validity
Practicality Reliability
As Shown in the diagram below …

32. VALIDITY
Determinants

33. 11-33
Content
ConstructCriterion
As Shown in the diagram below …

34. INCREASING
Content Validity
Increasing Content Validity

35. 11-35
Content
Literature
Search
Expert
Interviews
Group
Interviews
Question
Database
Etc.
As Shown in the diagram below …

36. VALIDITY
Determinants

37. 11-37
Content
Construct
As Shown in the diagram below …

38. INCREASING
Construct Validity

39. 11-39
New measure of trust
Known measure of trust
Empathy
Credibility
As Shown in the diagram below …

40. VALIDITY
Determinants

41. 11-41
Content
ConstructCriterion
As Shown in the diagram below …

42. JUDGING CRITERION
Validity

43. 11-43
Relevance
Freedom from bias
Reliability
Availability
Criterion
As Shown in the diagram below …

44. UNDERSTANDING
Validity and Reliability

45. 11-45
As Shown in the diagram below …

46. RELIABILITY
Estimates

47. 11-47
Stability
Internal
Consistency
Equivalence
As Shown in the diagram below …

48. PRACTICALLY

49. 11-49
Economy InterpretabilityConvenience
As Shown in the diagram below …

50. 11-50
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Last is Key Terms
Remembering the Words beside …
• Internal validity
• Interval scale
• Mapping rules
• Measurement
• Nominal scale
• Objects
• Ordinal scale
• Practicality
• Properties

51. 11-51
http://www.memrise.com/s3_proxy/?f=uploads/mems/3432650000130607200152.jpeg
Last is Key Terms
Remembering the Words beside …
• Ratio scale
• Reliability
Equivalence
Internal consistency
Stability
• Validity
Construct
Contents
Criterion-related