User testing is arguably the most useful evidence gathering method of all. In my experience, the amount of ideas for site improvements that come out of a session of user testing surpasses anything else.
If you've followed the process of gathering quantitive data first and you know you have conversion issues on your site, this can tell you why issues have been happening. You'll be able to watch users go through your flow and (providing your test is well designed) you'll see where they get stuck, and hear them tell you why they don't like something or can't find things.
Now you can gain this knowledge from lab user testing or even guerilla user testing. But remote testing has a few big advantages: it's much quicker and easier to run, the user doesn't have to travel to you; the user is in their own environment on their own device acting as they normally would; the user tends to feel a lot less under pressure and distracted by a facilitator. There’s no excuse not to set up a quick unmoderated remote test ahead of each redesign project or as a regular monthly thing.
There are three main methods of remote user testing: 1. facilitated & moderated by you; 2. facilitated (and possibly moderated) by someone else; 3. facilitated by you but unmoderated. Each of them works a bit differently.
1. For the moderated & facilitated by you approach, this obviously involves the most work for you but can potentially cost nothing. You'll need to find the users, organise a time to have a video call, record the call, and then write up notes. I will ask clients to suggest users for me to contact, and will email them to book in a time for a call using the handy Calendly. The call itself consists of using Skype so they can share their screen with me. I then share a link to a prototype or website and can see and hear them as they navigate it. The call can be recorded with screen recording software (QuickTime is handy for this) and immediately after I write up my main observations.
2. The facilitated by someone else approach means hiring a company to set up and run your user test, which may or may not be moderated by them as well. Moderation is generally useful when you're testing a prototype or early version of something that requires a bit of explaining or isn't fully working. Either way you'll specify what you want to test, and they'll run and analyse it so you get a report at the end with the findings.
3. The unmoderated option consists of you setting up the test and putting it out to a panel of users who are ready to go. You then get back the videos of the users navigating the site for you to analyse and draw insights from. If it's a real live website I think unmoderated is the way to go as this is closer to the reality of how users actually browse the web. You will need to develop some skills in putting together a decent test and get some enjoyment from watching videos of people going through your site. As painful as this can be at times, as a UX designer or product manager, there are few better ways to understand what your users face.
Writing a user test involves making sure you're not putting leading instructions in there. Like leading questions, you don't want to be pushing the users to do certain things or you'll never learn. Keep them simple by saying things like 'show how you would search' rather than 'click the search button in the top right and fill out your dates and location'. Some people simplify the whole test by only setting users one task like 'show how you would buy a product'. The danger here is that users whizz through the process and you don't get to see them interact with all parts of your site, hence why I prefer a bit of guidance with five or six tasks.
Make sure you recruit accurately for your tests. You'll want people who match your actual users (you can use audience data to discover this). It’s very rare that a website is designed to appeal to absolutely everybody so you want users who are going to provide legitimate feedback. Five users is usually fine for each test—any more and you just tend to see repeated behaviours—but make sure you have five per major device category, as these can be very different. For example, I use five on desktop and five on mobile.
When it comes to analysing your own tests try and stick to recoding observed behaviours. Users might say that they don't like a feature (especially if it is new) only to be perfectly competent at using it. Quotes are useful to put in reports to explain behaviours but shouldn't be used if they don't reflect what actually happened. Aim to watch all your tests through and annotate them so you have a good sense of events, before summarising the repeated insights and critical issues in a report.
For your own moderated tests, as mentioned above, good old Skype (free) tends to work well enough and has the benefit of almost everyone having an account. If you want someone else to facilitate, a company that I've heard good things about is WhatUsersDo (from £3,000/project). When it comes to unmoderated testing, I'm a huge fan of UserTesting (from $49/test) which offers a great set of tools for creating and watching back your tests, including being able to time stamp your videos with notes and create clips to share.
Assuming five users, unmoderated testing can be done in a matter of a few days. If you're moderating it yourself then the extra organising tends to mean it takes a week or so.
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Note: the examples in this guide are for website design, but most of the content is also applicable for native apps and software.