August 8, 2022
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4 min

Usability Testing Guide: What It Is, How to Run It, and When to Use Each Method

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Knowing and understanding why and how your users use your product can be invaluable for getting to the nitty gritty of usability. Where they get stuck and where they fly through. Delving deep with probing questions into motivation or skimming over looking for issues can equally be informative.

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Usability testing can be done in several ways, each way has its benefits. Put super simply, usability testing literally is testing how useable your product is for your users. If your product isn't useable users will not stick around or very often complete their task, let alone come back for more.

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What is usability testing?

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Usability testing is a research method used to evaluate how easy something is to use by testing it with representative users.

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These tests typically involve observing a participant as they work through a series of tasks involving the product being tested. Having conducted several usability tests, you can analyze your observations to identify the most common issues.

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We go into the three main methods of usability testing:

  1. Moderated and unmoderated
  2. Remote or in person
  3. Explorative, assessment or comparative

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1. Moderated or unmoderated usability testing

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Moderated usability testing


Moderated usability testing
is done in-person or remotely by a researcher who introduces the test to participants, answers their queries, and asks follow-up questions. Often these tests are done in real time with participants and can involve other research stakeholders. Moderated testing usually produces more in-depth results thanks to the direct interaction between researchers and test participants. However, this can be expensive to organize and run.

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Top tip: Use moderated testing to investigate the reasoning behind user behavior.

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Unmoderated usability testing

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Unmoderated usability testing
is done without direct supervision; likely participants are in their own homes and/or using their own devices to browse the website that is being tested. And often at their own pace.  The cost of unmoderated testing is lower, though participant answers can remain superficial and making follow-up questions can be difficult.

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Top tip: Use unmoderated testing to test a very specific question or observe and measure behavior patterns.

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2. Research or in-person usability testing

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Remote usability testing

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‍Remote usability testing is done over the internet or by phone. Allowing the participants to have the time and space to work in their own environment and at their own pace. This however doesn’t give the researcher much in the way of contextual data because you’re unable to ask questions around intention or probe deeper if the participant makes a particular decision. Remote testing doesn’t go as deep into a participant’s reasoning, but it allows you to test large numbers of people in different geographical areas using fewer resources.

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Top tip: Use remote testing when a large group of participants are needed and the questions asked can be direct and unambiguous.

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In-person usability testing

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‍In-person usability testing, as the name suggests, is done in the presence of a researcher. In-person testing does provide contextual data as researchers can observe and analyze body language and facial expressions. You’re also often able to converse with participants and find out more about why they do something. However, in-person testing can be expensive and time-consuming: you have to find a suitable space, block out a specific date, and recruit (and often pay) participants.

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Top tip: In-person testing gives researchers more time and insight into motivation for decisions.

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3. Explorative, Assessment or comparative testing

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These three usability testing methods generate different types of information:

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Explorative testing

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‍Explorative testing is open-ended. Participants are asked to brainstorm, give opinions, and express emotional impressions about ideas and concepts. The information is typically collected in the early stages of product development and helps researchers pinpoint gaps in the market, identify potential new features, and workshop new ideas.

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Assessment research

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‍Assessment research is used to test a user's satisfaction with a product and how well they are able to use it. It's used to evaluate general functionality.

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Comparative research

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‍Comparative research methods involve asking users to choose which of two solutions they prefer, and they may be used to compare a product with its competitors.

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Top tip: Depending on what research is being done, and how much qualitative or quantitative data is wanted.

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Which method is right for you?

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Whether the testing is done in-person, remote, moderated or unmoderated will depend on your purpose, what you want out of the testing, and to some extent your budget. 

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Depending on what you are testing, each of the usability testing methods we explored here can offer an answer. If you are at the development stage of a product it can be useful to conduct a usability test on the entire product. Checking the intuitive usability of your website, to ensure users can make the best decisions, quickly. Or adding, changing or upgrading a product can also be the moment to check on a specific question around usability. Planning and understanding your objectives are key to selecting the right usability testing option for your project.

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Let's take a look at a couple of examples of usability testing.

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1. Lab based, in-person moderated testing - mid-life website

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Imagine you have a website that sells sports equipment. Over time your site has become cluttered and disorganized, much like a bricks and mortar store may. You’ve noticed a drop in sales in certain areas. How do you find out what is going wrong or where users are getting lost? Having an in-person, lab (or other controlled environment), moderated usability test with users you can set tasks, watch (and record) what they do.

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The researcher can literally be standing or sitting next to the participant throughout, recording contextual information such as how they interacted with the mouse, laptop or even the seat. Watching for cues as to the comfort of the participant and asking questions about why they make decisions can provide richer insights. Maybe they wanted purple yoga pants, but couldn’t find the ‘yoga’ section which was listed under gym rather than a clothing section.

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Meaning you can look at how your stock is organised, or even investigate undertaking a card sort. This provides robust and fully rounded feedback on users behaviours, expectations and experiences. Providing data that can directly be turned into actionable directives when redeveloping the website. 

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2. Remote, moderated assessment testing - app product development

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You are looking at launching an app for parents to access for information and updates for the school. It’s still in development stage and at this point you want to know how easy the app is to use. Setting some very specific set tasks for participants to complete the app can be sent to them and they can be left to complete (or not). Providing feedback and comments around the usability.

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The next step may be to use first click testing to see how and where the interface is clicked and where participants may be spending time, or becoming lost. Whilst the feedback and data gathered from this testing can be light, it will be very direct to the questions asked. And will provide data to back up (or possibly not) what assumptions were made.

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3. Moderated, In-person, explorative testing - new product development

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You’re right at the start of the development process. The idea is new and fresh and the basics are being considered. What better way to get an understanding of what your users’ truly want than an explorative study.

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Open-ended questions with participants in a one-on-one environment (or possibly in groups) can provide rich data and insights for the development team. Imagine you have an exciting new promotional app that you are developing for a client. There are similar apps on the market but none as exciting as what your team has dreamt up. By putting it (and possibly the competitors) to participants they can give direct feedback on what they like, love and loathe.

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They can also help brainstorm ideas or better ways to make the app work, or improve the interface. All of this done, before there is money sunk in development.

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Usability testing summary: When to use each method (and why)

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Key objectives will dictate which usability testing method will deliver the answers to your questions.

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Whether it’s in-person, remote, moderated or comparative with a bit of planning you can gather data around your users very real experience of your product. Identify issues, successes and failures. Addressing your user experience with real data, and knowledge can but lead to a more intuitive product.

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5 key areas for effective ResearchOPs

Simply put, ResearchOps is about making sure your research operations are robust, thought through and managed. 

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Having systems and processes around your UX research and your team keep everyone (and everything) organized. Making user research projects quicker to get started and more streamlined to run. And robust sharing, socializing, and knowledge storage means that everyone can understand the research insights and findings and put these to use - across the organization. And even better, find these when they need them. 

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Using the same tools across the team allows the research team to learn from each other, and previous research projects and be able to compare apples with apples, with everyone included. Bringing the team together across tools, research and results.

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We go into more detail in our ebook ResearchOps Checklist about exactly what you can do to make sure your research team is running at its best. Let’s take a quick look at 5 way to ensure you have the grounding for a successful ResearchOps team.

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1. Knowledge management 📚

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What do you do with all of the insights and findings of a user research project? How do you store them, how do you manage the insights, and how do you share and socialize?

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Having processes in place that manage this knowledge is important to the longevity of your research. From filing to sharing across platforms, it all needs to be standardized so everyone can search, find and share.

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2. Guidelines and process templates 📝

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Providing a framework for how to run research projects is are important. Building on the knowledge base from previous research can improve research efficiencies and cut down on groundwork and administration. Making research projects quicker and more streamlined to get underway.

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3. Governance 🏛

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User research is all about people, real people. It is incredibly important that any research be legal, safe, and ethical. Having effective governance covered is vital.

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4. Tool stack 🛠

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Every research team needs a ‘toolbox’ that they can use whenever they need to run card sorts, tree tests, usability tests, user interviews, and more. But which software and tools to use?

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Making sure that the team is using the same tools also helps with future research projects, learning from previous projects, and ensuring that the information is owned and run by the organization (rather than whichever individuals prefer). Reduce logins and password shares, and improve security with organization-wide tools and platforms. 

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5. Recruitment 👱🏻👩👩🏻👧🏽👧🏾

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Key to great UX research is the ability to recruit quality participants - fast! Having strong processes in place for screening, scheduling, sampling, incentivizing, and managing participants needs to be top of the list when organizing the team.

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Wrap Up 💥

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Each of these ResearchOps processes are not independent of the other. And neither do they flow from one to the other. They are part of a total wrap around for the research team, creating processes, systems and tools that are built to serve the team. Allowing them to focus on the job of doing great research and generating insights and findings that develop the very best user experience. 

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Afterall, we are creating user experiences that keep our users engaged and coming back. Why not look at the teams user experience and make the most of that. Freeing time and space to socialize and share the findings with the organization. 

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A comprehensive look at usability testing

Usability testing has an important role in UX and if you’re new to it, this article gives you a solid introduction to it with practical tips, a checklist for success and a look at our remote testing tool, Treejack.

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Concepts of usability testing

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Usability testing is the process of evaluating a product or service with users prior to implementation. The goal of usability testing is to identify any usability issues before the product or service is released into the world for use. Usability testing is a research activity that results in both quantitative and qualitative insights and can be used to gauge user satisfaction.A typical usability testing session is moderated and involves a participant, a facilitator and an observer. The facilitator leads the session and the observer takes notes while the participant completes the task based scenario.

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While this is common, usability testing is scalable and the possible approaches are endless giving you the flexibility to work with the resources you have available—sometimes one person performs the role of facilitator and observer!Location also varies for usability testing. For example, you might conduct your testing in a lab environment or you might talk to users in a specific environment. It also worth noting that not all usability testing sessions are moderated—more about this later.Usability testing usually occurs multiple times during the design process and can be conducted anytime you have a design you would like to test.

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‍User research activities like a focus group for example, are conducted early in the design process to explore and gain understanding before ideas are generated. Usability testing is about testing those ideas as early and as often as possible. From a fully functioning digital prototype to a simple hand drawn wireframe on paper, nothing is too unrefined or too rough to be tested.

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Developing a usability test plan

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Before you start a round of usability testing, you need to develop a usability test plan. The usability test plan will keep you organised and is an opportunity to define roles and set clear expectations upfront. The first step in developing this is to hold a meeting with your team and stakeholders to discuss what you are going to do and how you plan to achieve it. Following this meeting, a document outlining the usability test plan as it was discussed is created and shared with the group for review. Any changes suggested by the group are then added to the final document for approval from the relevant stakeholders.

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What to include in your usability test plan:

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  • The goal, scope and intent of the usability testing
  • Constraints impacting upon testing
  • Details on what will be tested eg wireframes
  • Schedule and testing location
  • Associated costs eg participant recruitment
  • Facilitator and observer details for each session
  • Session details
  • Participant recruitment approach
  • Equipment
  • Details of any documentation to be produced eg a report

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Usability testing questions

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Once you have developed your test plan, you need to create a list of questions and task based scenarios for the testing session. These form the structure for your testing and provide a framework of consistency across all testing sessions in the study.The questions serve as a warm up to ease the participant into the session and can also provide insights on the user that you may not have had before. These questions can be a combination of open and closed questions and are especially useful if you are also developing personas for example. Some examples of what you might ask include:

  • Tell me about a recent experience you had with this product/service
  • Do you currently use this product/service?
  • Do you own a tablet device?

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The purpose of the task based scenarios is to simulate a real life experience as closely as possible. They provide a contextual setting for the participant to frame their approach and they need to be realistic—your participant needs an actionable starting point to work from. A good starting point for task based scenario development would be to look at a use case.It is also important that you avoid using language that provides clues to the solution or leads your participant as this can produce inaccurate results. An example of a task based scenario would be:You’re planning a Christmas vacation to New Zealand for your family of two adults and 4 children. Find the lowest priced airfares for your trip.

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Usability testing software: Tree testing

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Treejack is a remote information architecture (IA) validation tool that shows you exactly where users are getting lost in your content. Knowing this will enable you to design a structure for your website that makes sense to users before moving on to the user interface (UI) design.Treejack works like a card sort in reverse. Imagine you have just completed a card sort with your users to determine your IA and you are now working backwards to test that thinking against real world task based scenarios. Treejack does this using a text-based version of your IA that is free from distracting visual aids such as navigation and colour allowing you to determine if your structure is usable from the ground up. A Treejack study is structured around task based scenarios and comes with the option to include pre and post study questionnaires.

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treejack task image
Usability testing with Treejack

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As a remote testing tool, Treejack is unmoderated and provides the opportunity to reach a much larger audience because all you have to do is share a link to the study with your participants to gain insights. You also have the option of handing the task of targeted participant recruitment over to Optimal Workshop.Once launched and shared with participants, Treejack takes care of itself by recording the results as they come in giving you the freedom to multitask while you wait for the testing to finish.

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The results produced by Treejack are not only detailed and comprehensive but are also quite beautiful. The story of your participants’ journey through your testing activity is told through pietrees. A pietree is a detailed pathway map that shows where your participants went at each fork in the road and their destinations. They allow you to pinpoint exactly where the issues lie and are a powerful way to communicate the results to your team and stakeholders.

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bananacom pie tree
Treejack presents your results using pietrees

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Treejack also provides insights into where your participants landed their first click and records detailed information on pathways followed by each individual participant.

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bananacom paths
Treejack records full details of the paths followed by every participant

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Usability testing checklist

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The following checklist will help ensure your usability testing process runs smoothly:

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  • Meet with team and stakeholders
  • Determine goals, scope and intent of usability testing
  • Decide how many sessions will be conducted
  • Create usability testing schedule
  • Select facilitators and observers for each session if applicable
  • Develop and complete a usability test plan
  • Determine test questions and scenarios
  • Recruit participants for testing
  • Gather equipment required for testing if applicable
  • Book testing location if applicable
  • Keep a list of useful contact details close by in case you need to contact anyone during testing
  • Complete a dry run of a testing session with a team member to ensure everything works before actual testing begins
  • Organise debrief meetings with observers after each testing session
  • Set aside time to analyse the findings
  • Document and present findings to team and relevant stakeholders

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Related reading

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Header graphic for the article 'Mixed methods research in 2021'
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Mixed methods research in 2021

User experience research is super important to developing a product that truly engages, compels and energises people. We all want a website that is easy to navigate, simple to follow and compels our users to finish their tasks. Or an app that supports and drives engagement.

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We’ve talked a lot about the various types of research tools that help improve these outcomes. 

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There is a rising research trend in 2021.

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Mixed method research - what is more compelling than these user research quantitative tools? Combining these with awesome qualitative research! Asking the same questions in various ways can provide deeper insights into how our users think and operate. Empowering you to develop products that truly talk to your users, answer their queries or even address their frustrations.

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Though it isn’t enough to simply ‘do research’, as with anything you need to approach it with strategy, focus and direction. This will funnel your time, money and energy into areas that will generate the best results.

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Mixed Method UX research is the research trend of 2021

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With the likes of Facebook, Amazon, Etsy, eBay, Ford and many more big organizations offering newly formed job openings for mixed methods researchers it becomes very obvious where the research trend is heading.

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It’s not only good to have, but now becoming imperative, to gather data, dive deeper and generate insights that provide more information on our users than ever before. And you don't need to be Facebook to reap the benefits. Mixed method research can be implemented across the board and can be as narrow as finding out how your homepage is performing through to analysing in depth the entirety of your product design.

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And with all of these massive organizations making the move to increase their data collection and research teams. Why wouldn’t you?

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The value in mixed method research is profound. Imagine understanding what, where, how and why your customers would want to use your service. And catering directly for them. The more we understand our customers, the deeper the relationship and the more likely we are to keep them engaged.

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Although of course by diving deep into the reasons our users like (or don’t like) how our products operate can drive your organization to target and operate better at a higher level. Gearing your energies to attracting and keeping the right type of customer, providing the right level of service and after care. Potentially reducing overheads, by not delivering to expected levels.

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What is mixed method research?

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Mixed methods research isn’t overly complicated, and doesn’t take years for you to master. It simply is a term used to refer to using a combination of quantitative and qualitative data. This may mean using a research tool such as card sorting alongside interviews with users. 

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Quantitative research is the tangible numbers and metrics that can be gathered through user research such as card sorting or tree testing.

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Qualitative research is research around users’ behaviour and experiences. This can be through usability tests, interviews or surveys.

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For instance you may be asking ‘how should I order the products on my site?’. With card sorting you can get the data insights that will inform how a user would like to see the products sorted. Coupled with interviews you will get the why.

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Understanding the thinking behind the order, and why one user likes to see gym shorts stored under shorts and another would like to see them under active wear. With a deeper understanding of how and why users decide how content should be sorted are made will create a highly intuitive website. 

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Another great reason for mixed method research would be to back up data insights for stakeholders. With a depth and breadth of qualitative and quantitative research informing decisions, it becomes clearer why changes may need to be made, or product designs need to be challenged.

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How to do mixed method research

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Take a look at our article for more examples of the uses of mixed method research. 

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Simply put mixed method research means coupling quantitative research, such as tree testing, card sorting or first click testing, with qualitative research such as surveys, interviews or diary entry.

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Say, for instance, the product manager has identified that there is an issue with keeping users engaged on the homepage of your website. We would start with asking where they get stuck, and when they are leaving.

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This can be done using a first-click tool, such as Chalkmark, which will map where users head when they land on your homepage and beyond. 

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This will give you the initial qualitative data. However, it may only give you some of the picture. Coupled with qualitative data, such as watching (and reporting on) body language. Or conducting interviews with users directly after their experience so we can understand why they found the process confusing or misleading.

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A fuller picture, means a better understanding.

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Key is to identify what your question is and honing in on this through both methods. Ultimately, we are answering your question from both sides of the coin.

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Upcoming research trends to watch

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Keeping an eye on the progression of the mixed method research trend, will mean keeping an eye on these:

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1. Integrated Surveys

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Rather than thinking of user surveys as being a one time, in person event, we’re seeing more and more often surveys being implemented through social media, on websites and through email. This means that data can be gathered frequently and across the board. This longitude data allows organizations to continuously analyse, interpret and improve products without really ever stopping. 

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Rather than relying on users' memories for events and experiences data can be gathered in the moment. At the time of purchase or interaction. Increasing the reliability and quality of the data collected. 

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2. Return to the social research

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Customer research is rooted in the focus group. The collection of participants in one space, that allows them to voice their opinions and reach insights collectively. This did used to be an overwhelming task with days or even weeks to analyse unstructured forums and group discussions.

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However, now with the advent of online research tools this can also be a way to round out mixed method research.

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3. Co-creation

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The ability to use your customers input to build better products. This has long been thought a way to increase innovative development. Until recently it too has been cumbersome and difficult to wrangle more than a few participants. But, there are a number of resources in development that will make co-creation the buzzword of the decade.

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4. Owned Panels & Community

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Beyond community engagement in the social sphere. There is a massive opportunity to utilise these engaged users in product development. Through a trusted forum, users are far more likely to actively and willingly participate in research. Providing insights into the community that will drive stronger product outcomes.

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What does this all mean for me

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So, there is a lot to keep in mind when conducting any effective user research. And there are a lot of very compelling reasons to do mixed method research and do it regularly. 

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To remain innovative, and ahead of the ball it remains very important to be engaged with your users and their needs. Using qualitative and qualitative research to inform product decisions means you can operate knowing a fuller picture.

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One of the biggest challenges with user research can be the coordination and participant recruitment. That’s where we come in.

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Taking the pain out of the process and streamlining your research. Take a look at our Qualitative Research option, Reframer. Giving you an insight into how we can help make your mixed method research easier and analyse your data efficiently and in a format that is easy to understand.

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User research doesn’t need to take weeks or months. With our participant recruitment we can provide reliable and quality participants across the board that will provide data you can rely on.

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Why not get in deeper with mixed method research today!

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