IxDF Certificate of Completion

Conducting Usability Testing

IxDF Course Certificate awarded to Christine Wahn for completing the "Conducting Usability Testing" course
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The Interaction Design Foundation (IxDF) hereby certifies that the IxDF Course Certificate (ID #bcf1ef5f-5a86-4e38-aa37-a4c864f75f7b) has been conferred upon Christine Wahn with a Top 10% Course Taker Distinction in formal recognition of completing evidence-based curricula taught by industry leaders, to the standards established by the IxDF Educational Codex. View Course Curriculum.

This document serves as the official record of the above credential. Third parties may reference the certificate ID to verify its authenticity. The Interaction Design Foundation maintains permanent records of all credentials issued.

Verified Competencies Demonstrated by Christine Wahn

By completing this curriculum to the standards of the IxDF Educational Codex, Christine Wahn has demonstrated mastery of how to:

  • Define usability testing, decide when to use it over related methods, and set clear usability goals.
  • Make the business case for usability testing and establish it as a recurring part of the design process to embed it in a team's culture.
  • Build a structured test plan grounded in linked user and business objectives, select the appropriate type of test for the situation, and capture the right metrics for the design decision at hand.
  • Determine an appropriate sample size for the chosen test type, defend that number to stakeholders unfamiliar with qualitative research, and screen and recruit the ideal participants.
  • Write well-formed, scenario-based test tasks using realistic, non-leading language that results in natural user behavior.
  • Conduct a pilot ("dry run") test to surface and fix problems before testing with real participants.
  • Moderate a usability test effectively and maintain control of a session.
  • Observe without bias by keeping personal and organizational agendas out of observation.
  • Analyze test results, write a concise, persuasive usability test report, and then use findings to influence and negotiate with stakeholders.
  • Build user empathy and advocacy among stakeholders by having them observe live sessions firsthand.
  • Decide when and how often to test, prioritizing early and iterative testing to catch issues while they are still cheap to fix.
  • Avoid common data-quality traps, including over-reliance on user self-reporting and the misuse of remote tools that don't capture true metrics.
  • Protect participant wellbeing and brand reputation by recognizing and avoiding "user emotion traps" so participants leave emotionally neutral.
View Profile: Christine Wahn
  • IxDF Distinguished Scholar
    IxDF Distinguished Scholar distinction: Completed 30 IxDF Courses
  • IxDF Outstanding Learner Award
    IxDF Outstanding Learner Award distinction: Completed 15 IxDF Courses
  • IxDF Best-in-Class
    IxDF Best-in-Class distinction: Completed an IxDF Course with a score of 100%
  • IxDF Top 10% Course Taker
    IxDF Top 10% Course Taker distinction: Completed an IxDF course with a score of 90%
  • More distinctions
    +4

Welt, Germany

Christine Wahn

Art-Based Coaching at Elhorn 1

IxDF Distinctions

Distinctions are conferred upon Christine Wahn in formal recognition of their notable achievements and contributions, as stipulated by the IxDF Educational Codex.

IxDF Assiduous Learner Award Distinction IxDF Assiduous Learner Award
Completed 5
IxDF Courses
IxDF Best-in-Class Distinction IxDF Best-in-Class
Completed an IxDF Course
with a score of 100%
IxDF Certified Course Completer Distinction IxDF Certified Course Completer
Completed one or more
IxDF Courses.
IxDF Distinguished Scholar Distinction IxDF Distinguished Scholar
Completed 30
IxDF Courses
IxDF Local Group Member Distinction IxDF Local Group Member
Member of an
IxDF Local Group
IxDF Master Class Learner Distinction IxDF Master Class Learner
Completed one or more
IxDF Master Classes
IxDF Outstanding Learner Award Distinction IxDF Outstanding Learner Award
Completed 15
IxDF Courses
IxDF Top 10% Course Taker Distinction IxDF Top 10% Course Taker
Completed an IxDF course
with a score of 90%
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Certificates Earned
by Christine Wahn

IxDF Course Certificates are awarded to Christine Wahn in formal recognition of completing evidence-based curricula taught by industry leaders, to the standards established by the IxDF Educational Codex.

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Accessibility in Practice: Build Digital Experiences Everyone Can Use certificate

Accessibility in Practice: Build Digital Experiences Everyone Can Use

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Object-Oriented UI Design: Build Interfaces Users Love certificate

Object-Oriented UI Design: Build Interfaces Users Love

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Present Like a Pro: Communication Skills to Fast-Track Your Career certificate

Present Like a Pro: Communication Skills to Fast-Track Your Career

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Personas and User Research: Design Products and Services People Need and Want certificate

Personas and User Research: Design Products and Services People Need and Want

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Human-Computer Interaction: The Foundations of UX Design certificate

Human-Computer Interaction: The Foundations of UX Design

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The Brain and Technology: Brain Science in Interface Design certificate

The Brain and Technology: Brain Science in Interface Design

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Service Design: How to Design Integrated Service Experiences certificate

Service Design: How to Design Integrated Service Experiences

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How to Create Intuitive Products by Imitating Physicality certificate

How to Create Intuitive Products by Imitating Physicality

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Creativity: Methods to Design Better Products and Services certificate

Creativity: Methods to Design Better Products and Services

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Gamification - How to Create Engaging User Experiences certificate

Gamification - How to Create Engaging User Experiences

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Emotional Design — How to Make Products People Will Love certificate

Emotional Design — How to Make Products People Will Love

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IxDF Master Class Certificates Earned

IxDF Master Class Certificates are awarded to Christine Wahn in formal recognition of their attendance and ongoing commitment to learning from industry leaders.

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Agentic AI for Everyone: How to Integrate Agents into Your Day-to-Day Work certificate

Agentic AI for Everyone: How to Integrate Agents into Your Day-to-Day Work

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AI for Game UX: Speed Up Research, Ideas, and Prototypes certificate

AI for Game UX: Speed Up Research, Ideas, and Prototypes

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How to Break into UI Design: Design Skills That Make You Irreplaceable by AI certificate

How to Break into UI Design: Design Skills That Make You Irreplaceable by AI

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The AI Playbook: How to Capitalize on Machine Learning certificate

The AI Playbook: How to Capitalize on Machine Learning

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Storytelling Strategies for Future Thinkers and Design Leaders certificate

Storytelling Strategies for Future Thinkers and Design Leaders

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Hooked: How to Build Habit-Forming Products with Nir Eyal certificate

Hooked: How to Build Habit-Forming Products with Nir Eyal

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Storytelling That Sells UX Design: Define Requirements and Engage Leadership certificate

Storytelling That Sells UX Design: Define Requirements and Engage Leadership

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UX Magic: Achieve 10X Better Designs Through Semantic Interaction Design certificate

UX Magic: Achieve 10X Better Designs Through Semantic Interaction Design

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How to Break into UX Design and Product Design: A Career Change Guide certificate

How to Break into UX Design and Product Design: A Career Change Guide

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Radical Participatory Design: Insights From NASA’s Service Design Lead certificate

Radical Participatory Design: Insights From NASA’s Service Design Lead

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How to Master the Invisible Work: Practical Tips and Insights to Build a Design Culture and Advance Your Career certificate

How to Master the Invisible Work: Practical Tips and Insights to Build a Design Culture and Advance Your Career

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Innovate with Design Thinking: Your Shortcut to Results certificate

Innovate with Design Thinking: Your Shortcut to Results

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How to Design for the Human Mind: Cognitive Science for UX certificate

How to Design for the Human Mind: Cognitive Science for UX

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Behavioral Design 101: How to Design for Behavior Change certificate

Behavioral Design 101: How to Design for Behavior Change

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Design for Adaptability: Component-Driven Information Architecture certificate

Design for Adaptability: Component-Driven Information Architecture

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How to Elevate the User Experience of AI with Design Patterns certificate

How to Elevate the User Experience of AI with Design Patterns

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How to Create Successful Design Systems with Storytelling certificate

How to Create Successful Design Systems with Storytelling

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How to Use User Research to Design the Best Products and Services certificate

How to Use User Research to Design the Best Products and Services

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Emotional Design: Evoke Emotional Responses Through Design certificate

Emotional Design: Evoke Emotional Responses Through Design

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How to Influence Behavior Through Virtual Reality Narratives certificate

How to Influence Behavior Through Virtual Reality Narratives

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Beyond Interfaces: The UI Design Skills You Need to Know certificate

Beyond Interfaces: The UI Design Skills You Need to Know

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Mental Models: How to Design for the Way Your Users Think certificate

Mental Models: How to Design for the Way Your Users Think

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How to Use Card Sorting for Better Information Architecture certificate

How to Use Card Sorting for Better Information Architecture

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Behavioral Design: Create Engaging Products with Behavioral Science certificate

Behavioral Design: Create Engaging Products with Behavioral Science

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Innovating in an Enterprise: The Challenges and How to Overcome Them certificate

Innovating in an Enterprise: The Challenges and How to Overcome Them

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How to Attract Users Through Great Onboarding Experiences certificate

How to Attract Users Through Great Onboarding Experiences

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IxDF Membership Certificate

This IxDF Membership Certificate (ID #Qht6cD0Wc) has been issued to Christine Wahn in formal recognition of their membership of the Interaction Design Foundation (IxDF).

The authenticity of this membership certificate can be verified on this permanent link.

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