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Usability Tester metrics and KPIs

What are Usability Tester metrics?

Identifying the optimal Usability Tester metrics can be challenging, especially when everyday tasks consume your time. To help you, we've assembled a list of examples to ignite your creativity.

Copy these examples into your preferred app, or you can also use Tability to keep yourself accountable.

Find Usability Tester metrics with AI

While we have some examples available, it's likely that you'll have specific scenarios that aren't covered here. You can use our free AI metrics generator below to generate your own strategies.

Examples of Usability Tester metrics and KPIs

Metrics for Performance of UX Designer

  • 1. Usability Test Success Rate

    The percentage of tasks successfully completed by users during usability testing

    What good looks like for this metric: 80-90% success rate

    Ideas to improve this metric
    • Conduct more user interviews
    • Improve task clarity
    • Ensure intuitive navigation
    • Simplify user interactions
    • Enhance feedback mechanisms

  • 2. Time on Task

    The average time a user takes to complete a specific task during testing

    What good looks like for this metric: 2-5 minutes per task

    Ideas to improve this metric
    • Streamline user flows
    • Minimize unnecessary steps
    • Use clear, concise instructions
    • Reduce input fields
    • Enhance system responsiveness

  • 3. Error Rate

    The average number of errors users encounter while performing tasks during testing

    What good looks like for this metric: Less than 5% error rate

    Ideas to improve this metric
    • Improve error messaging
    • Test for common user mistakes
    • Simplify complex interactions
    • Increase user guidance
    • Utilize clear affordances

  • 4. User Satisfaction Score

    Numerical rating given by users based on their satisfaction with the interface

    What good looks like for this metric: 7 or higher on a 10-point scale

    Ideas to improve this metric
    • Incorporate user feedback
    • Create an aesthetically pleasing design
    • Reduce cognitive load
    • Increase accessibility options
    • Ensure consistent design elements

  • 5. Prototype Iteration Count

    The number of iterations a prototype undergoes before reaching a final design

    What good looks like for this metric: 3-5 iterations

    Ideas to improve this metric
    • Gather diverse feedback early
    • Prioritise the most critical design issues
    • Utilise rapid prototyping tools
    • Test with varied user groups
    • Focus on one major change per iteration
success-rateuser-satisfactionux-designerusability-testerdesign-teamproduct-development-team
Implement these metrics

Tracking your Usability Tester metrics

Having a plan is one thing, sticking to it is another.

Setting good strategies is only the first challenge. The hard part is to avoid distractions and make sure that you commit to the plan. A simple weekly ritual will greatly increase the chances of success.

A tool like Tability can also help you by combining AI and goal-setting to keep you on track.

Tability Insights DashboardTability's check-ins will save you hours and increase transparency

More metrics recently published

We have more examples to help you below.

Planning resources

OKRs are a great way to translate strategies into measurable goals. Here are a list of resources to help you adopt the OKR framework:

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