Introduction to Qualitative Research
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Transcript of Introduction to Qualitative Research
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Introduction to Qualitative ResearchAaron Louie, User Experience Architect
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PURPOSE
WHY QUALITATIVE RESEARCH?
RESEARCH DESIGN
VALIDITY & RELIABILITY
WRITING INTERVIEW QUESTIONS
ANALYZING DATA
RESOURCES
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PURPOSE
WHY QUALITATIVE RESEARCH?
RESEARCH DESIGN
VALIDITY & RELIABILITY
WRITING INTERVIEW QUESTIONS
ANALYZING DATA
RESOURCES
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omWhat this presentation will do
Lay the basic groundwork for gaining skills in user research
Provide useful guidelines for writing interview questions
Point you to resources for deeper study in qualitative research methods
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omWhat it won’t do
Substitute for a college course on the subject
Make you an expert
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PURPOSE
WHY QUALITATIVE RESEARCH?
RESEARCH DESIGN
VALIDITY & RELIABILITY
WRITING INTERVIEW QUESTIONS
ANALYZING DATA
RESOURCES
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The purpose of qualitative research is…
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om…to make sense of reality…
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om…in a valid and reliable fashion.
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omDescribing reality
Reality is complex.
All real problems are “wicked” problems.
Two ways to approach it: Quantify it. Then construct mathematical models describing it. Experience it qualitatively. Then make sense of it.
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omQuantitative vs. Qualitative
Controlled environment
Experimentation
Deductive
Numbers
Researcher is objective
Natural/complex environments
Interaction
Inductive
Words
Researcher is a participant
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Hypothesize ExperimentAnalyze
DataRefine
Hypothesis
The Scientific Method
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omQuantitative Research
Predict outcome &
design experiment to test outcome
Collect measurements in a controlled environment
Apply statistical
calculations
Identify patterns, revise
assumptions
Hypothesize ExperimentAnalyze
DataRefine
Hypothesis
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omQualitative Research
Identify assumptions &
formulate research questions
Collect data via observation, interviews,
surveys, etc.
Count, classify, &
structure data
Identify themes, revise assumptions
Hypothesize ExperimentAnalyze
DataRefine
Hypothesis
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PURPOSE
WHY QUALITATIVE RESEARCH?
RESEARCH DESIGN
VALIDITY & RELIABILITY
WRITING INTERVIEW QUESTIONS
ANALYZING DATA
RESOURCES
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omResearch Design
Determine scope What you’re researching What you’re not
Identify assumptions Models from literature Researcher’s biases
Draft research questions
Choose your methods Data collection methods Analysis methods
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omFraming Research Questions
List what you expect to find out, based on the scope and your assumptions.
For each finding, write a question (or series of questions) that must be answered to support or invalidate the finding.
Determine dependencies (which questions must be answered first).
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Qualitative Data Collection Methods
Surveys Pros: quantifiable, lower chance of affecting subject Cons: no interaction with subject, nuances of emotion or environment lost
Naturalistic observation Pros: gain understanding of environment without interfering with subject Cons: very little interaction with subject, no insight into subject’s mental
processes
Contextual inquiry (shadowing, on-site interviews, think-aloud, etc.) Pros: balanced level of interaction with subject, insight into subject’s
thoughts in context of tasks and environment Cons: researcher’s physical presence can affect subject’s behavior
Ethnography (embedded research) Pros: maximum level of interaction with subject, researcher gains deep
understanding by becoming a subject, subjects treat researcher as peer Cons: time- and cost-prohibitive
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omAnalysis Methods
Statistical Analysis
Content Analysis
Narrative Analysis
Strategic Analysis
Workflow Analysis
Task Analysis
Business Analysis
Cognitive Work Analysis
Systems Analysis
Grounded Theory
etc.
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PURPOSE
WHY QUALITATIVE RESEARCH?
RESEARCH DESIGN
VALIDITY & RELIABILITY
WRITING INTERVIEW QUESTIONS
ANALYZING DATA
RESOURCES
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omGood research design
Maximize validity Conclusions are true
Maximize reliability Findings are repeatable
Relatively easy to do in quantitative research
Impossible to do in qualitative research
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omThreats to validity
Changes in environment
Changes in society
Effects of time
Changes in person
Bias in subject
Interaction between subjects
(In other words, stuff you can’t control.)
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omThreats to validity(stuff you CAN control) Bias in researcher
Interaction between researcher and subject
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Researcher Subject
Ergonomics
Mental constraints & abilities
Tasks & activities
Work domain
Organizational structure
Business strategy
Personal resources & values
EthnographicClinical
Validity vs. Understanding
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Executive
Upper management
Supervisor
How does the subject view you?
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PURPOSE
WHY QUALITATIVE RESEARCH?
RESEARCH DESIGN
VALIDITY & RELIABILITY
WRITING INTERVIEW QUESTIONS
ANALYZING DATA
RESOURCES
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omComposing an Interview Script
List what must be known in order to answer each research question
For each item in that list, write a question
Organize the questions into categories
Sort general specific within each category
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omPhrasing Questions
Ask open questions for general questions “what”, “why”, “when”, “how”, “who”
Ask closed questions for specific questions “how often”, “how many”
Reserve yes/no questions for branching points in interview script(i.e., a line of questioning dependent on a previous answer) “Have you ever done X? If so, how did you feel about…”
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omRefining Interview Questions
Remove biased or charged language “What do you think about the problems with the intranet”
Avoid asking leading questions “Wouldn’t it be better if you did it this way?”
Be aware of your own biases! “How have consultants like Ascentium helped you get your job done
better?”
Structure questions to facilitate data analysis
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omConducting the Interview
Gain informed consent from the interviewee
Record audio/video whenever possible
Remain open-minded – don’t think too much
Listen, listen, listen
Avoid reacting too much (negatively or positively) to the interviewee’s responses
Take prodigious notes
Write up notes immediately after interview
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PURPOSE
WHY QUALITATIVE RESEARCH?
RESEARCH DESIGN
VALIDITY & RELIABILITY
WRITING INTERVIEW QUESTIONS
ANALYZING DATA
RESOURCES
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omAnalyzing The Data
Go through notes & transcript Identify frequent keywords Categorize responses Look for patterns
Match keywords, categories, and patterns to models and assumptions
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PURPOSE
WHY QUALITATIVE RESEARCH?
RESEARCH DESIGN
VALIDITY & RELIABILITY
WRITING INTERVIEW QUESTIONS
ANALYZING DATA
RESOURCES
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omResources
Books The Craft of Research by Wayne C. Booth, Joseph M. Williams, Gregory G.
Colomb [link] Qualitative Research Methods for the Social Sciences by Bruce L. Berg [link
] Cognitive Work Analysis: Toward Safe, Productive, and Healthy Computer-
Based Work by Kim J. Vicente [link]
Web sites Cognitive Work Analysis: Toward Safe, Productive, and Healthy Computer-
Based Work by Kim J. Vicente [link] Qualitative Research Consultants Association: FAQs about Qualitative
Research [link] Association for Information Systems: Qualitative Resarch in Information
Systems [link] UsabilityNet: Tools and methods [link] UW Libraries: Lit Reviews, Research Methods… [link] Virginia Tech: Annotated Bibliography on Qualitative Research
Methodology [link]