5.1. measurement

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.
http://cdn2.cloudpro.co.uk/sites/cloudprod7/files/pointing.jpg

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
http://www.memrise.com/s3_proxy/?f=uploads/mems/3432650000130607200152.jpeg
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