Lab + Remote
We run in-lab sessions with eye tracking for maximum depth, and remote sessions for speed and geographic reach.
Usability testing and user experience research that turns confused users into satisfied customers
You designed a beautiful interface. Your developers built it perfectly. And users still can’t complete the checkout. UX research finds where the interface breaks — not where designers think it might break, but where real users actually get lost, frustrated, or abandon. At Fieldstat, we combine usability testing, eye tracking, user interviews, and behavioural analytics to diagnose UX problems and validate design solutions with evidence, not assumptions.
Task-based usability testing. We recruit 8–15 target users and ask them to complete realistic tasks on your website, app, or prototype: “Find a product under PLN 200 and add it to cart,” “Change your subscription plan,” “Find the return policy.” We observe and record every click, hesitation, and error. The result is a prioritised list of usability issues ranked by severity, frequency, and business impact.
Eye tracking for digital interfaces. Where does the user look first? Does the CTA get noticed? Is the navigation visible? We combine eye tracking with usability tasks to answer these questions with gaze-precision data. Heat maps show attention density. Gaze plots show scanning paths. Time-to-first-fixation reveals whether critical elements are immediately discoverable.
Quantitative UX metrics. For larger samples, we deploy online surveys with standardised UX scales: SUS (System Usability Scale), CSAT, task completion rate, time-on-task, and error rate. These metrics benchmark your interface against industry standards and track improvement over time.
When to test. Before launch (prototype testing catches problems before development costs escalate). After launch (live testing identifies real-world issues invisible in staging). During redesign (A/B testing validates that the new version actually outperforms the old). Continuously (UX tracking dashboards monitor satisfaction and task success over time).
Sources: Nielsen Norman Group, Fieldstat UX practice
| Method | Sample | What It Reveals | Best For |
|---|---|---|---|
Moderated usability test |
8–15 users |
Task failures, confusion points, emotional reactions |
Prototype validation, redesign evaluation |
Unmoderated remote test |
15–50 users |
Task completion rate, time-on-task, click paths |
Live sites, large-scale benchmarking |
Eye tracking |
15–25 users |
Visual attention, CTA discovery, scanning patterns |
Navigation, landing pages, dashboards |
UX survey (SUS) |
N=100–500 |
Perceived usability score, satisfaction |
Benchmarking, tracking over time |
A/B testing |
N=500+ |
Which version performs better (conversion, engagement) |
Design validation, optimisation |
Can users intuitively complete the purchase process on the website?
Which interface elements cause frustration and cart abandonment?
Jak oceniana jest nawigacja w naszej aplikacji mobilnej?
Is the new registration form more understandable than the previous one?
What UX improvements will increase website conversion?
We run in-lab sessions with eye tracking for maximum depth, and remote sessions for speed and geographic reach.
We rank usability issues by revenue impact — not just severity scores. Your dev team knows exactly what to fix first.
We test at every stage: paper prototypes, Figma mockups, staging environments, and live production sites.
SUS, CSAT, task success rate, and time-on-task — benchmarked against industry standards for objective evaluation.
We define test objectives, create realistic user tasks, and recruit target users matching your customer profile.
Users complete tasks while we observe, record, and capture eye tracking data. We note every hesitation, error, and workaround.
We catalogue every usability issue, classify severity, and map each problem to specific interface elements.
We rank issues by estimated revenue impact: which fixes will improve conversion, reduce support tickets, and increase satisfaction.
You receive a prioritised fix list, annotated screenshots, UX benchmark scores, and design recommendations.
8–15 users find 85%+ of usability issues. For quantitative metrics (SUS, benchmarking), we recommend 30–50+.
Moderated usability tests from PLN 12,000. UX + eye tracking from PLN 20,000. Large-scale UX surveys from PLN 10,000.
Yes. We test at every fidelity level: paper sketches, Figma prototypes, staging environments, and live production sites.
Yes. Remote moderated sessions via Zoom/Teams, and unmoderated remote tests using specialised platforms. Both deliver reliable UX data.
System Usability Scale (SUS) is a standardised 100-point usability measure. Scores above 68 are above average; above 80 is excellent. We benchmark your score against industry peers.
Task-based usability testing (moderated and unmoderated), eye tracking, heuristic evaluation, A/B testing, card sorting, and quantitative UX benchmarking (SUS, SUPR-Q, task success rates).
5–8 users per persona segment will uncover ~85% of usability issues. For quantitative UX benchmarks, N=30+ per segment is recommended.
Yes. We test all digital products — websites, mobile apps, SaaS platforms, kiosks, and prototypes at any fidelity level.
External sources and industry organizations related to this research method:
This solution is most frequently applied in the following industries: