IxDF Certificate of Completion

User Research – Methods and Best Practices

IxDF Course Certificate awarded to Sofiia Polishchuk for completing the "User Research – Methods and Best Practices" course
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The Interaction Design Foundation (IxDF) hereby certifies that the IxDF Course Certificate (ID #5a8e08a3-fb93-4125-afe8-bc93f260f52d) has been conferred upon Sofiia Polishchuk 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 Sofiia Polishchuk

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

  • Plan, conduct, and analyze semi-structured qualitative interviews.
  • Ask productive interview questions using Kvale and Brinkmann's nine question types, build rapport with participants, and use the critical incidents technique to prevent vague, generalized answers.
  • Conduct thematic analysis of qualitative data for both deductive and exploratory studies, and recognize and counter common pitfalls.
  • Plan, moderate, and report on usability tests using the think-aloud protocol, and apply the right testing approach and metrics for design decisions.
  • Plan, run, and analyze a contextual inquiry using its four principles: context, partnership, interpretation, and focus.
  • Plan and conduct observational studies (active or passive).
  • Create engaging personas grounded in research data that communicate user needs and foster empathy within design teams.
  • Use affinity diagrams, empathy maps, and user journey maps to synthesize qualitative data and communicate results for maximum stakeholder impact.
  • Run design-thinking workshops that turn research insights into actionable design opportunities.
  • Map stakeholders across business, engineering, and UX using Tomer Sharon's framework and conduct stakeholder interviews to surface constraints, history, and expectations, in order to gain support for research.
  • Make the case for user research by articulating its three core purposes (relevance, usability, and ROI) and turning them into arguments that secure resources.
  • Choose the right qualitative research method for the question at hand, understand when to combine methods, and know how qualitative research complements quantitative approaches.
  • Keep qualitative research trustworthy through grounded theory coding and Kvale's three lenses for objectivity.
  • Apply user research ethics, including informed consent, participant data safety, safeguards for vulnerable populations, and respect for participants' right to withdraw at any time.
  • Write a comprehensive user research project plan, pilot it before recruiting participants, and document the full study.
View Sofiia Polishchuk's profile
Sofiia Polishchuk

Sofiia Polishchuk

UX Designer

Hradec Kralové, Czech Republic
  • IxDF Top 10% Course Taker
    IxDF Top 10% Course Taker distinction: Completed an IxDF course with a score of 90%
  • IxDF Community Explorer
    IxDF Community Explorer distinction: Attended 3 IxDF Meetups
  • IxDF Local Group Member
    IxDF Local Group Member distinction: Member of an IxDF Local Group
  • IxDF Master Class Learner
    IxDF Master Class Learner distinction: Completed one or more IxDF Master Classes
  • IxDF Certified Course Completer
    IxDF Certified Course Completer distinction: Completed one or more IxDF Courses.
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IxDF Distinctions

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

IxDF Certified Course Completer Distinction IxDF Certified Course Completer
Completed one or more
IxDF Courses.
IxDF Community Explorer Distinction IxDF Community Explorer
Attended 3 IxDF Meetups
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 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 Sofiia Polishchuk

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

IxDF Master Class Certificates Earned

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

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How to Build Agentic AI Workflows for Product Design: Go from Prompts to Systems certificate

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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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Boost Mobile UX with UX Design Principles and Best Practices certificate

Boost Mobile UX with UX Design Principles and Best Practices

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Win Clients, Pitches and Approval: Present Your Designs Effectively certificate

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How to Attract Users Through Great Onboarding Experiences certificate

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

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IxDF Membership Certificate

This IxDF Membership Certificate (ID #mc_Vfp6hgzJH) has been issued to Sofiia Polishchuk 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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