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Anyone who has done user research is familiar with Murphy's Law  – the participant doesn’t show up on time, the test equipment fails (it was working this morning!) – and the list goes on.

Testing online

For online testing, the main things to cover are:

• Piloting your our test to shake out mistakes in the tree and the task wording
  
  
• Providing a contact for participants who encounter problems
  
  
• Alerting your our support channels that you’re we’re doing a study, in case participants call to check that it’s legitimate.
  
  

For more on handling problems during a test, see Checking for technical problems in Chapter 10 and Monitoring the test's progress in Chapter 11.

Testing in person

For in-person sessions, the main challenge is getting the right participant in the right room at the right time. Mostly that’s a matter of good recruiting, though life does happen – traffic is heavy, kids get sick, etc.

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For more on planning and running in-person user research, we recommend ~insert book title here.

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Next: Documenting your our plan