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Questionnaires and Instruments
量表設計
中央大學 . 資訊管理系范錚強
mailto: ckfarn@mgt.ncu.edu.tw
2013.05 updated
10
中央資管:范錚強 2
Overall Flowchart for Instrument Design
Instrument Ready for Data
Collection
Instrument Ready for Data
Collection
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Flowchart for Instrument Design Phase 1
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Strategic Concerns in Instrument Design
What type of scale is needed?
What communication approach will be used?
Should the questions be structured?
Should the questioning be disguised?
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Technology Affects Questionnaire Development
WebSurveyor used to write an instrument.
Write questionnaires more quickly
Create visually driven instruments
Eliminate manual data entry
Save time in data analysis
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Disguising Study Objectives
Situations where
disguise is unnecessary
Situations where
disguise is unnecessary
Willingly shared,Conscious-level
information
Reluctantly shared,Conscious-level
information
Knowable,Limited-conscious-level
information
Subconscious-level information
中央資管:范錚強 7
Dummy Table for American Eating Habits
Age
Use of Convenience Foods
Always UseUse
FrequentlyUse
Sometimes Rarely Use Never Use
18-24
25-34
35-44
55-64
65+
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Flowchart for Instrument Design Phase 2
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Question Categories and Structure
Administrative
Classification
Target
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Question Content
Should this question be asked?知道你問題的目的(不要是因為其他人都問)
Is the question of proper scope and coverage?
Can the participant adequately answer this question as asked?
Will the participant willingly answer this question as asked?
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Question Wording
CriteriaCriteria
Shared vocabulary Single
meaning
Misleading assumptions
Adequate alternatives
Personalized
Biased
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Response Strategy
Factors Factors
Objectives of the study
Participant’s level of
information
Degree to which participants have thought
through topic
Ease and clarity with which participant communicates
Participant’s motivation to
share
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Free-Response Strategy
What factors influenced your enrollment in Metro U?________________________________________________________________________________________
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Dichotomous Response Strategy
Did you attend the “A Day at College” program at Metro U?
YesNo
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Multiple Choice Response Strategy
Which one of the following factors was most influentialin your decision to attend Metro U?
Good academic standingSpecific program of study desiredEnjoyable campus lifeMany friends from homeHigh quality of faculty
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Checklist Response Strategy
Which of the following factors influencedyour decision to enroll in Metro U? (Check all that apply.)
Tuition cost Specific program of study desired Parents’ preferences Opinion of brother or sister Many friends from home attend High quality of faculty
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Rating Response Strategy
Strongly influential
Somewhat influential
Not at all
influential
Good academic reputation
Enjoyable campus life
Many friends
High quality faculty
Semester calendar
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Ranking
Please rank-order your top three factors from the following list based on their influence in encouraging you to apply to Metro U. Use 1 to indicate the most encouraging factor, 2 the next most encouraging factor, etc._____ Opportunity to play collegiate sports_____ Closeness to home_____ Enjoyable campus life_____ Good academic reputation_____ High quality of faculty
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Summary of Scale TypesType Restrictions Scale
ItemsScale points
Data Type
Rating Scales
Simple Category Scale
Needs mutually exclusive choices One or more
2 Nominal
Multiple Choice Single-Response Scale
Needs mutually exclusive choices; may use exhaustive list or ‘other’
many 2 Nominal
Multiple Choice Multiple-Response Scale(checklist)
Needs mutually exclusive choices; needs exhaustive list or ‘other’
many 2 Nominal
Likert Scale Needs definitive positive or negative statements with which to agree/disagree
One or more
5 Ordinal
Likert-type Scale Needs definitive positive or negative statements with which to agree/disagree
One or more
7 or 9 Ordinal
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Summary of Scale TypesType Restrictions Scale
ItemsScale points
Data Type
Semantic Differential Scale
Needs words that are opposites to anchor the graphic space.
One or more
7 Ordinal
Numerical Scale Needs concepts with standardized or defined meanings; needs numbers anchor the end-points or points along the scale; score is a measurement of graphical space from one anchor.
One or many
3-10 Ordinal or Interval
Multiple Rating List Scale
Needs words that are opposites to anchor the end-points on the verbal scale
Up to 10 5-7 Ordinal
Fixed Sum Scale Participant needs ability to calculate total to some fixed number, often 100.
Two or more
none Interval or Ratio
Stapel Scale Needs verbal labels that are operationally defined or standard.
One or more
10 Ordinal or Interval
Graphic Rating Scale
Needs visual images that can be interpreted as positive or negative anchors; score is a measurement of graphical space from one anchor.
One or more
none Ordinal (Interval, or Ratio)
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Summary of Scale Types
Type Restrictions Scale Items
Scale points
Data Type
Ranking ScalesPaired Comparison Scale
Number is controlled by participant’s stamina and interest.
Up to 10 2 Ordinal
Forced Ranking Scale
Needs mutually exclusive choices. Up to 10 many Ordinal or Interval
Comparative Scale
Can use verbal or graphical scale. Up to 10 Ordinal
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Internet Survey Scale Options
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Internet Survey Scale Options
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Internet Survey Scale Options
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Sources of Questions
Handbook of Marketing Scales
The Gallup Poll Cumulative Index
Measures of Personality and Social-Psychological Attitudes
Measures of Political Attitudes
Index to International Public Opinion
Sourcebook of Harris National Surveys
Marketing Scales Handbook
American Social Attitudes Data Sourcebook
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Flowchart for Instrument Design: Phase 3
Instrument Ready for Data
Collection
Instrument Ready for Data
Collection
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Branching Question
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Components of Questionnaires
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量表的編排
美觀清楚排列整齊分行清晰用線條、陰影等
用適當的字體大小層次感
避免字意混淆
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量表翻譯
注意語意──不只是字意英 (a) 翻中 (b) 之後,中翻英 (c)
檢查 a 與 c 的語意差異前測
是否讀得懂?
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Overcoming Instrument Problems
Build rapportBuild rapport
Redesign question processRedesign question process
Explore alternativesExplore alternatives
Use other methodsUse other methods
PretestPretest
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萬一要衡量的變數是有「社會正確」答案的
社會正確?你會不會照顧團體利益?你會不會非法 copy 軟體?你會不會不顧一切,堅持己見?
得到的結果嚴重偏誤如何能使得偏誤能降低
用兩端有張力的故事情節,挑選角色和看法
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