This document contains summaries of two chapters about measurement in research methodology:
Chapter 11 discusses the concepts of measurement, including the four scale types (nominal, ordinal, interval, and ratio), sources of measurement error, and criteria for evaluating measurement tools.
Chapter 12 covers selecting an appropriate measurement scale based on research objectives and scale characteristics like response type, number of dimensions, and forced vs. unforced choices. Several specific scale types are described like rating, ranking, sorting, Likert, and semantic differential scales.
Scaling is the process of measuring or ordering entities with respect to quantitative attributes or traits. With comparative scaling, the items are directly compared with each other .In non -comparative scaling each item is scaled independently of the others.
It Covers basic tool-kit of scales that can be used for the purposes of marketing research. The measurement scales covered are into two groups; comparative and non-comparative scales. The examples further simplifies the Understanding.
Scaling is the process of measuring or ordering entities with respect to quantitative attributes or traits. With comparative scaling, the items are directly compared with each other .In non -comparative scaling each item is scaled independently of the others.
It Covers basic tool-kit of scales that can be used for the purposes of marketing research. The measurement scales covered are into two groups; comparative and non-comparative scales. The examples further simplifies the Understanding.
Research Methodology: Questionnaire, Sampling, Data Preparationamitsethi21985
As per PTU's MBA Syllabus, Unit No. 2: Sources Of Data: Primary And Secondary; Data Collection Methods; Questionnaire Designing: Construction, Types And Developing A Good Questionnaire. Sampling Design and Techniques, Scaling Techniques, Meaning, Types, Data Processing Operations, Editing, Coding, Classification, Tabulation. Research Proposal/Synopsis Writing. Practical Framework
3. Secondary Data, Online Information Databases, and Measurement.docxtamicawaysmith
3. Secondary Data, Online Information Databases, and Measurement Scaling
1
Primary Scales of Measurement
7
3
8
Scale
Nominal Numbers
Assigned
to Runners
Ordinal Rank Order
of Winners
Interval Performance
Rating on a
0 to 10 Scale
Ratio Time to Finish, in
Seconds
Third
place
Second
place
First
place
Finish
Finish
8.2
9.1
9.6
15.2
14.1
13.4
Primary Scales of Measurement
Nominal Scale: The numbers serve only as labels or tags for identifying and classifying objects.
Ordinal Scale: A ranking scale
Interval Scale: Numerically equal distances on the scale represent equal values in the characteristic being measured.
Ratio Scale: Possesses all the properties of the nominal, ordinal, and interval scales. It has an absolute zero point.
Illustration of Scales of Measurement
Nominal Ordinal Ratio
Scale Scale Scale
Preference $ spent last No. Store Rankings 3 months
1. Parisian
2. Macy’s
3. Kmart
4. Kohl’s
5. J.C. Penney
6. Neiman Marcus
7. Marshalls
8. Saks Fifth Avenue
9. Sears
10.Wal-Mart
Interval
Scale
Preference Ratings
1-7
A Classification of Scaling Techniques
Comparative Scaling Techniques
Paired Comparison Scaling
A respondent is presented with two objects and asked to select one according to some criterion.
The data obtained are ordinal in nature.
Paired comparison scaling is the most widely-used comparative scaling technique.
With n brands, [n(n - 1) /2] paired comparisons are required.
Under the assumption of transitivity, it is possible to convert paired comparison data to a rank order.
Obtaining Shampoo Preferences
Using Paired Comparisons
Instructions: We are going to present you with ten pairs of shampoo brands. For each pair, please indicate which one of the two brands of shampoo you would prefer for personal use.
Recording Form:
aA 1 in a particular box means that the brand in that column was preferred over the brand in the corresponding row. A 0 means that the row brand was preferred over the column brand. bThe number of times a brand was preferred is obtained by summing the 1s in each column.
Paired Comparison Selling
The most common method of taste testing is paired comparison. The consumer is asked to sample two different products and select the one with the most appealing taste. The test is done in private and a minimum of 1,000 responses is considered an adequate sample. A blind taste test for a soft drink, where imagery, self-perception and brand reputation are very important factors in the consumer’s purchasing decision, may n ...
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Author: Imafidon Osademwingie Martins
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1. C H A P T E R 1 1 : M E A S U R E M E N T
C H A P T E R 1 2 : M E A S U R E M E N T S C A L E S
SESSION 5
MEASUREMENT
RESEARCH
METHODOLOGY
2. CHAPTER 11
MEASUREMENT
Learning Objectives:
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.
27. CHAPTER 12
MEASUREMENT SCALES
Learning Objectives:
The nature of attitudes and their relationship to behavior.
The critical decisions involved in selecting an appropriate measurement
scale.
The characteristics and use of rating, ranking, sorting, and other
preference scales.
29. Selecting a
Measurement Scale 12-
29
Research objectives Response types
Data properties
Number of
dimensions
Forced or unforced
choices
Balanced or
unbalanced
Rater errors
Number of
scale points
31. Balanced or Unbalanced
12-
31
Very bad
Bad
Neither good nor bad
Good
Very good
Poor
Fair
Good
Very good
Excellent
How good an actress is Angelina Jolie?
Very bad
Bad
Neither good nor bad
Good
Very good
Very bad
Bad
Neither good nor bad
Good
Very good
No opinion
Don’t know
Forced or Unforced Choices
32. Number of Scale Points
12-
32
Very bad
Bad
Neither good nor bad
Good
Very good
Very bad
Somewhat bad
A little bad
Neither good nor bad
A little good
Somewhat good
Very good
How good an actress is Angelina Jolie?
33. Rater Errors
12-
33
Error of
central tendency
Error of leniency
•Adjust strength of
descriptive adjectives
•Space intermediate
descriptive phrases
farther apart
•Provide smaller
differences
in meaning between
terms near the
ends of the scale
•Use more scale points
34. Rater Errors
12-
34
Primacy Effect
Recency Effect
Reverse order of
alternatives periodically
or randomly
Halo Effect
• Rate one trait
at a time
• Reveal one trait
per page
• Reverse anchors
periodically
35. Simple Category Scale
12-
35
I plan to purchase a MindWriter laptop in the
12 months.
Yes
No
What newspaper do you read most often for financial news?
East City Gazette
West City Tribune
Regional newspaper
National newspaper
Other (specify:_____________)
Multiple-Choice,
Single-Response Scale
36. Multiple-Choice,
Multiple-Response Scale
12-
36
What sources did you use when designing your new
home? Please check all that apply.
Online planning services
Magazines
Independent contractor/builder
Designer
Architect
Other (specify:_____________)
The Internet is superior to traditional libraries for
comprehensive searches.
Strongly disagree
Disagree
Neither agree nor disagree
Agree
Strongly agree
Likert Scale
51. MindWriter Scaling
12-
51
Likert Scale
The problem that prompted service/repair was resolved
Strongly
Disagree Disagree
Neither Agree
Nor Disagree Agree
Strongly
Agree
1 2 3 4 5
Numerical Scale (MindWriter’s Favorite)
To what extent are you satisfied that the problem that prompted service/repair was resolved?
Very
Dissatisfied
Very
Satisfied
1 2 3 4 5
Hybrid Expectation Scale
Resolution of the problem that prompted service/repair.
Met Few
Expectations
Met Some
Expectations
Met Most
Expectations
Met All
Expectations
Exceeded
Expectations
1 2 3 4 5