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Hick's Law

Define​

The time taken to make a decision increases as the number of options Increases

Hick's Law is also known as the 'Hick-Hyman Law'. In situations where a decision is made between multiple equal options, the time taken is related to the number of options available. A decision between few options will take less time than a decision between many options.

In interface design, this principle is often quoted to argue for the elimination of distractions and a reduction in the number of options presented to the user. It is especially relevant for tasks where time is an issue.

In interface design, this principle is often quoted to argue for the elimination of distractions and a reduction in the number of options presented to the user. It is especially relevant for tasks where time is an issue.

Hick's Law does not apply when:

  • Options are spread between layers in a complex hierarchy
  • Options are presented on unequal terms
  • The user is highly familiar with the options available
  • Significant reading is required to understand each option

Resources​