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• An organization may want all of its employees to do a study for a new intranet that it's planning.
  
  
• You may be using a commercial research panel where panelists are automatically rewarded once they complete the study.
  
  

In this case, you'll need a mandatory question that asks for a unique identifier from each participant:

• For commercial panels, this is often a numeric identifier that the panel assigns to each panelist.
  
  
  • The identifier may be automatically passed to your tree-test tool by the panel software, in which case you just need to set up the integration of the two tools. (See your tool's docs for details.)
    
    
  • If there is no automatic integration, you'll need to ask each panelist to enter the identifier that their panel gave them.
    
    
• For other situations, you'll need to find out which identifier to use (email address is a common choice), and ask each participant for it.

For prize draws, follow-ups, and further studies

If we need contact info, we In most of the studies we run, we don't really need the contact info of every participant.

• If they're willing to give it to us (e.g. for a prize draw, for follow-ups on this study, or for future studies), that's great.
  
  
• But if they want to stay anonymous, that's fine too. We really just want their tree-test responses, and we don't want them to abandon the test because they feel they're being strong-armed in to giving up personal information.
  
  

In most cases, we typically just ask for an email address because it’s easy (one field that they type all the time) and pretty much everyone has one.

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Your email address (optional - only used for the prize draw, or if you asked to be notified about future research. No spam!)

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