Randomization and Logic Setup 🎲

What is randomization?

  • The randomization function in Qualtrics (or ‘randomizer’) allows you to randomly present question blocks, embedded data, and other aspects of your survey such as branches.

Setting Up Randomization

Proper randomization is crucial for your experiment’s validity. Here’s how to do it step by step - but you can find a more detailed guide here:

Randomizing Question Blocks or Study Conditions

  1. Navigate to the “Survey Flow” tab on Qualtrics
  2. Add a Randomizer element
  3. Select “Evenly Present Elements”
  4. Add your condition blocks under the randomizer
  5. Set presentation numbers:
    • For single condition per participant: “Randomly present 1 of the following elements”
    • For multiple conditions: “Randomly present X of the following elements”

🔄 Remember: If you add more blocks later, you’ll need to update your randomizer numbers!

Branch Logic

What is branch logic?

  • Branch logic in your survey flow lets you create different paths for people taking your survey. They work like forks in a road, they let you:
  • Send people to different questions based on how they answer
  • Create personalized survey experiences
  • Skip irrelevant sections automatically
  • Show special questions only to certain people

Setting Up Branches

  1. Identify branching points
  2. Set up clear conditions
  3. Test all possible paths
  4. Verify end points

Common Use Cases

  • Consent form branching
  • Attention check routing
  • Condition-specific questions
  • Early exit paths

💡 Pro Tip: Draw out your logic flow on paper first - it helps spot potential issues before building!

❓You can also explore different kinds of logic functions, such as skip logic and display logic to help you design your survey