8-1
Part Two                    THE DESIGN OF RESEARCH 8-2McGraw-Hill/Irwin             © 2003 The McGraw-Hill Companies, Inc....
Chapter Eight      MEASUREMENT8-3
Measurement      • Selecting observable empirical events      • Using numbers or symbols to represent        aspects of th...
What is Measured?      • Objects:        – Things of ordinary experience        – Some things not concrete      • Properti...
Characteristics of Data      •   Classification      •   Order      •   Distance (interval between numbers)      •   Origi...
Data Types                 Order     Interval   Origin      Nominal none         none       none      Ordinal    yes      ...
Sources of Measurement Differences      •   Respondent      •   Situational factors      •   Measurer or researcher      •...
Validity      • Content Validity      • Criterion-Related Validity        – Predictive        – Concurrent      • Construc...
Reliability       • Stability         – Test-retest         Equivalence         – Parallel forms       • Internal Consiste...
Practicality       • Economy       • Convenience       • Interpretability8-11
Upcoming SlideShare
Loading in …5
×

Business Research Methods Chap008

719 views

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
719
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
29
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Business Research Methods Chap008

  1. 1. 8-1
  2. 2. Part Two THE DESIGN OF RESEARCH 8-2McGraw-Hill/Irwin © 2003 The McGraw-Hill Companies, Inc.,All Rights Reserved.
  3. 3. Chapter Eight MEASUREMENT8-3
  4. 4. Measurement • Selecting observable empirical events • Using numbers or symbols to represent aspects of the events • Applying a mapping rule to connect the observation to the symbol8-4
  5. 5. What is Measured? • Objects: – Things of ordinary experience – Some things not concrete • Properties: characteristics of objects8-5
  6. 6. Characteristics of Data • Classification • Order • Distance (interval between numbers) • Origin of number series8-6
  7. 7. Data Types Order Interval Origin Nominal none none none Ordinal yes unequal none Interval yes equal or none unequal Ratio yes equal zero8-7
  8. 8. Sources of Measurement Differences • Respondent • Situational factors • Measurer or researcher • Data collection instrument8-8
  9. 9. Validity • Content Validity • Criterion-Related Validity – Predictive – Concurrent • Construct Validity8-9
  10. 10. Reliability • Stability – Test-retest Equivalence – Parallel forms • Internal Consistency – Split-half – KR20 – Cronbach’s alpha8-10
  11. 11. Practicality • Economy • Convenience • Interpretability8-11

×