powerpoint presentation...human computer interaction laboratory cmsc434 introduction to...
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HumanComputerInteractionLaboratory
CMSC434Introduction to Human-Computer Interaction
Week 02 | Lecture 03 | Feb 4, 2016
Formative Inquiry & User Research Methods
Jon Froehlich
@jonfroehlich
COMPUTER SCIENCEUNIVERSITY OF MARYLAND
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Title: Is this Large Enough? (36 pt)
• Content Level 1: What about this? (28 pt)
– Content Level 2: This is a 2nd level bullet (24 pt)
• Content Level 3: This is a 3rd level bullet (20 pt)
This is a sub-title to the title (24 pt)
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Title: Is this Large Enough? (40 pt)
• Content Level 1: What about this? (36 pt)
–Content Level 2: This is a 2nd level bullet (32 pt)
• Content Level 3: This is a 3rd level bullet (28 pt)
This is a sub-title (24 pts)
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Assignments
• IA03 Project Pitch
–Matt and I read, analyzed, and graded ~96 proposals
• IA04 Project Pitch Vote
–Assigned Yesterday, Due Friday 2/5 (11:59PM)
• IA05 Observation
–Assigned Today, Due Tues 2/16 (11:59PM)
Use the Calendar feature in Canvas to see all upcoming assignments and deadlines
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IA05 Observation: Due Tues 2/16 (11:59PM)
1. Review Study Ethics. Read UMD IRB documentation. Determine whether your observational study of Metro users would require an exempt review, an expedited review, or a full board review.
2. Perform User Observation. Go to Metro station. Watch people interact with Metro machines (e.g., ticket machine, turnstiles). Take notes, pictures, video.
3. Analyze Data. Identify problems, patterns, and insights.
4. Write Report and Sketch Alternative Designs. Write a report synthesizing your findings and include sketches of alternative designs.
This assignment has four parts
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Key Learning Outcomes Today
• Reflect on how to learn about people
• Understand importance and use of IRB
• Begin building a designer’s toolbox of user research
methods
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Hall of Fame Hall of Shame
Let’s begin with a Hall of Fame/Shame!
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Hall of Shame: Quitting SkypeConsistency is one of Jakob Nielsen’s 10 Usability Heuristics for User Interface Design
Jakob Nielsen
One of the most well-known “UI Experts”We’ll learn more about him throughout semester
Source: http://www.nngroup.com/articles/ten-usability-heuristics/
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Hall of Shame: Quitting SkypeConsistency is one of Jakob Nielsen’s 10 Usability Heuristics for User Interface Design
Users should not have to wonder whether
different words, situations, or actions mean
the same thing. Follow platform conventions.
Jakob Nielsen
One of the most well-known “UI Experts”We’ll learn more about him throughout semester
Source: http://www.nngroup.com/articles/ten-usability-heuristics/
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Hall of Shame: Quitting Skype
Normally when you think of “bad design”, you think of
the creator as being sloppy or lazy but with no ill intent.
This type of bad design is known as a “UI anti-pattern”.
Harry Brignull
Independent User Experience Designer
Curates darkpatterns.org
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Hall of Shame: Quitting Skype
Normally when you think of “bad design”, you think of
the creator as being sloppy or lazy but with no ill intent.
This type of bad design is known as a “UI anti-pattern”.
Harry Brignull
Independent User Experience Designer
Curates darkpatterns.org
We call this “Hall of Shame”
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Hall of Shame: Quitting Skype
Normally when you think of “bad design”, you think of
the creator as being sloppy or lazy but with no ill intent.
This type of bad design is known as a “UI anti-pattern”.
Dark Patterns are different – they are not mistakes,
they are carefully crafted with a solid understanding of
human psychology, and they do not have the user’s
interests in mind.
Harry Brignull
Independent User Experience Designer
Curates darkpatterns.org
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The Beginning: Figure Out What to Design
Dix et al. Interaction Design Process
Stanford d.school Design Process Rogers et al. Interaction Design Process
Waterfall Model with Step Iteration
Though design processes differ, they share a first step, which is…?
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The Beginning: Figure Out What to Design
Dix et al. Interaction Design Process
Stanford d.school Design Process Rogers et al. Interaction Design Process
Waterfall Model with Step Iteration
Despite differences, all design processes start with data gathering & identifying needs
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Before You
Design
While You
Design
After You’ve
“Finished”
Your Design
User Research MethodsYou can think about applying user research methods during 3 stages of a design
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Before You
Design
While You
Design
After You’ve
“Finished”
Your Design
User Research MethodsYou can think about applying user research methods during 3 stages of a design
Repeat!
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Before You
Design
While You
Design
After You’ve
“Finished”
Your Design
Formative Inquiry/Evaluation
Summative Evaluation
User Research MethodsYou can think about applying user research methods during 3 stages of a design
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Before You Design
While You Design
After You’ve “Finished” Your
Design
Class Activity: Brainstorm User Research MethodsLet’s list as many methods as we can under each category
• Idea 1 • Idea 1 • Idea 1
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Some Questions To Help Provoke Discussion
• …what people think, believe, their ideals, cultural values?
• …how people act and what they do?
• …how people use competing products?
• …what people think of competing products?
• …what people think of your idea?
• …how your product compares to other products on market?
How can we find out…
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Before You Design
While You Design
After You’ve “Finished” Your
Design
Class Activity: Brainstorm User Research MethodsLet’s list as many methods as we can under each category
• Surveys• Direct Observation• Look at demographic data• Interviews
• Interviewing users• Interviewing sales people
• Rely on prior experience• Study how people user other products (similar to
yours). Cost analysis• Study psychological models of humans• Read existing literature• Focus groups• Use device of similar product• Evaluate resources/personnel• All of the above
• Make (& evaluate) lo-fi prototype• Make a higher fidelity prototype• Make sketches & evaluate• Watch focus group use prototype• Get feedback from users/clients of
prototype• Observe• Testing/Evaluation• Eye-tracking• Questionnaire after using system
• Get feedback from users/clients• EMA or ESM (think Skype dialog box)• Automated Error Reports• Filling out bug reports• Observe• Testing/Evaluation• Eye-tracking• A/B Testing• Logging• Questionnaire after using system• Do people use it
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Before You Design
While You Design
After You’ve “Finished” Your
Design
• Surveys• 1:1 Interviews• Focus Groups• Observation
• Rapid ethnography• Contextual Inquiry• Online data sources• In-the-lab
• Experience Sampling Method (ESM) aka Ecological Momentary Assessment
• Diary Study• Cultural Probes• Empathy Tools
• Applying human performance models such as KLM or GOMS• Design Probes• Participatory Design• Paper Prototype Evaluation• Mid-Fi Prototype Evaluation• Wizard-of-Oz Evaluation• Lab-Based Evaluations• Alpha/Beta Deployments
• With ESM (think Skype)• With App Logging
• Heuristic Evaluation• Empathy Tools
• Application Logging• ESM (think Skype after-call
prompts)• Heuristic Evaluation• Remote Usability Testing
(screenshare)• A/B Testing
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Lots of Methods: How to Choose?
Each method:• Has it’s own benefits/drawbacks• Is good for answering certain kinds of questions• Collects different types of data (& “measures” different things)• Requires different kinds of analyses• Thus, most UX/HCI researchers triangulate (use more than one)
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Lots of Methods: How to Choose?
Each method:• Has it’s own benefits/drawbacks• Is good for answering certain kinds of questions• Collects different types of data (& “measures” different things)• Requires different kinds of analyses• Thus, most UX/HCI researchers triangulate (use more than one)
Note: There are literally entire classes dedicated to user research methods. We will only scratch the surface in this class!
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Before we go any further, it’s important to
talk about study ethics and informed consent.
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Before we go any further, it’s important to
talk about study ethics and informed consent.
This is always extremely important but particularly so in social justice topics where dealing with potentially vulnerable populations
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What constitutes human subjects research?
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Human Subjects Research: DefinitionCode of Federal Regulations: 45CFR46.102(f )
Human Subject means a living individual about whom an
investigator conducting research obtains:
1. data through interaction or intervention with the
individual, or
2. identifiable private information
Code of Federal Regulations
45CFR46.102(f )
Source: Code of Federal Regulations, http://www.hhs.gov/ohrp/humansubjects/guidance/45cfr46.html; UMD IRB Office, http://www.umresearch.umd.edu/RCO/New/IRBProcess.html#Definitions
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Human Subjects Research: DefinitionCode of Federal Regulations: 45CFR46.102(f )
Human Subject means a living individual about whom an
investigator conducting research obtains:
1. data through interaction or intervention with the
individual, or
2. identifiable private information
Research means a systematic investigation, including research
development, testing and evaluation, designed to develop or
contribute to generalizable knowledge.
Code of Federal Regulations
45CFR46.102(f )
Source: Code of Federal Regulations, http://www.hhs.gov/ohrp/humansubjects/guidance/45cfr46.html; UMD IRB Office, http://www.umresearch.umd.edu/RCO/New/IRBProcess.html#Definitions
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Institutional Review Board (IRB)
• Most professional societies, universities, government, and other research offices require researchers to provide detailed study plan information for any research activities that involves humans
• This study plan is evaluated by an Institutional Review Board (IRB) that assesses the value of the research compared to the risk/stress on participants
• A research team must receive full study approval by the IRB before conducting human subjects research
• IRBs exist to ensure that humans are not endangered physically or emotionally and that their right to privacy is protected– Yes, IRBs also exist to protect animals!
Performing human subjects research means you need IRB approval
Source: UMD IRB Office, http://www.umresearch.umd.edu/RCO/New/IRBProcess.html#Definitions; Rogers et al., Interaction Design, Chapter 15, 2011
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My Experience with IRBs
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A bit of history…
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Tuskegee Syphilis Study
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Nazi Experimentation
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Aforementioned are extreme examples, but..
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ABC Primetime, Basic Instincts: The Science of Evil, 2007, http://youtu.be/GHuI2JIPylk
Stanley MilgramObedience experiments, circa 1961
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Milgram Obedience ExperimentWhat are some potential human subjects ethical issues?
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Milgram Obedience ExperimentWhat are some potential human subjects ethical issues?
Milgram’s participants were placed in an emotionally
excruciating situation in which an experimenter
instructed them to continue administering electric
shocks to another individual despite hearing that
person’s agonizing screams of protest. The research
became, as I often told my students, the study that can
never be replicated.
Jerry Bruger, PhD
Professor of Pyschology
Santa Clara University
Source: Bruger, J., Replicating Milgram, Association for Psychological Science’s Observer, 2007
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Milgram Obedience ExperimentOften touted as why IRB is necessary and important
Milgram’s work was conducted in the early 1960s
before the current system of professional guidelines
and IRBs was in place. It is often held up as the
prototypic example of why we need policies to
protect the welfare of research participants.
Jerry Bruger, PhD
Professor of Pyschology
Santa Clara University
Source: Bruger, J., Replicating Milgram, Association for Psychological Science’s Observer, 2007
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Brainstorm: Human Subjects Study Principles
• Principle 1
How should we interact with participants? What should we guarantee?
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IDEO Principles for Studies with Human Participants
• At the beginning of the study, identify yourself, your intent, and what you are looking for
• Describe what data you are gathering and why it’s valuable
• Get permission to use information and photos/videos you take
• Keep all information confidential
• Let people know they can decline to answer questions or stop participating at any time
• Provide compensation
• At all times, have consideration for your participants’ health, privacy, and dignity
This is what IDEO recommends for its human subjects studies
Source: IDEO Method Cards
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IDEO’s principles map nicely to the “informed
consent” process, which is required of most
human subjects research
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Informed Consent
• A consent form is used to provide
information to prospective subjects
to enable persons to voluntarily
decide whether or not to
participate as research subjects.
• A consent form usually contains
the basic elements of informed
consent as identified in and
required by the Federal regulations
for the protection of human
subjects (45 CFR 46).
A written form approved by IRB and signed by participants before research begins
Source: UMD IRB Office, http://www.umresearch.umd.edu/RCO/New/IRBProcess.html#Definitions
UMD IRB Template Consent Form
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Source: UMD IRB Office, http://www.umresearch.umd.edu/RCO/New/IRBForms.html#consentform
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Companies Have Different Standard
• Commercial entities not funded by the federal
government, who don’t plan to publish, and who do
not plan to apply for, say, FDA approval, need not
follow human subjects research regulations
• Often times, study plans are reviewed but by lawyers
rather than an IRB and concerns include legal liability
and potential for public blowback
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Example: Facebook Emotion Contagion Study
• Researchers from Facebook and Cornell University manipulated the news feed of nearly 700,000 Facebook users for a week in 2012 to gauge whether emotions spread on social media
• They found that users who saw more positive posts tended to write more positive posts themselves, and vice versa.
• The study was published in the Proceedings of the National Academy of Sciences earlier in June,
Source: http://www.wsj.com/articles/facebook-study-sparks-ethical-questions-1404172292
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Example: Facebook Emotion Contagion Study
Sources: http://www.wsj.com/articles/facebook-study-sparks-ethical-questions-1404172292, http://www.cnn.com/2014/07/02/opinion/klitzman-facebook-experiment/, https://www.washingtonpost.com/news/morning-mix/wp/2014/07/01/facebooks-emotional-manipulation-study-was-even-worse-than-you-thought/
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Leading Study Ethics Experts Among Us
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Whew, OK, back to methods…
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Before You Design
While You Design
After You’ve “Finished” Your
Design
• Surveys• 1:1 Interviews• Focus Groups• Observation
• Rapid ethnography• Contextual Inquiry• Online data sources• In-the-lab
• Experience Sampling Method (ESM) aka Ecological Momentary Assessment
• Diary Study• Cultural Probes• Empathy Tools
• Applying human performance models such as KLM or GOMS• Design Probes• Participatory Design• Paper Prototype Evaluation• Mid-Fi Prototype Evaluation• Wizard-of-Oz Evaluation• Lab-Based Evaluations• Alpha/Beta Deployments
• With ESM (think Skype)• With App Logging
• Heuristic Evaluation• Empathy Tools
• Application Logging• ESM (think Skype after-call
prompts)• Heuristic Evaluation• Remote Usability Testing
(screenshare)• A/B Testing
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Before You Design
• Surveys• 1:1 Interviews• Focus Groups• Observation
• Rapid ethnography• Contextual Inquiry• Online data sources• In-the-lab
• Experience Sampling Method (ESM) aka Ecological Momentary Assessment
• Diary Study• Cultural Probes• Empathy Tools
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Before You Design
• Surveys• 1:1 Interviews• Focus Groups• Observation
• Rapid ethnography• Contextual Inquiry• Online data sources• In-the-lab
• Experience Sampling Method (ESM) aka Ecological Momentary Assessment
• Diary Study• Cultural Probes• Empathy Tools
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ObservationSource: http://goo.gl/SPwdPE
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Why Not Ask Users?
If I had asked my customers what they
wanted…
Henry Ford
Inventor / Car Designer
Industrial Revolutionary
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Why Not Ask Users?
If I had asked my customers what they
wanted, they would have said a faster
horse.
Henry Ford
Inventor / Car Designer
Industrial Revolutionary
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Why Not Ask Users… According to Steve Jobs
It’s not the consumers’ job to know what
they want.
Steve Jobs
Legend
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Quick Design Activity
• Who are your users?
• What tasks are you trying to support?
• What are some of the problems with the state-of-the-art measuring cup (shown)?
• Both of you will sketch your new design in individually in your notebooks
You and a partner: design a better measuring cup
State-of-the-art Measuring Cup
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Dark Palette
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Light Palette
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Light Palette
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Light Palette