Closed Card Sort

What is a Closed Card Sort?

A closed card sort is a user research technique where participants organize predefined items into fixed categories, helping researchers understand how users group and categorize information within a specific structure.

Synonyms: Fixed category card sort, Structured card sorting, Predefined category sorting

How Closed Card Sorting Works

In a closed card sort, researchers provide participants with a set of predefined items (usually written on cards) and a fixed set of categories. Participants then sort these items into the given categories based on their understanding and preferences. This method is particularly useful when you have a clear idea of your information architecture but want to validate or refine it.

Benefits of Closed Card Sorting

Validates Existing Structures: Helps confirm if your current categorization aligns with user expectations.
Quantifiable Results: Easier to analyze and compare results across multiple participants.
Time-Efficient: Generally quicker to conduct than open card sorts.
Focused Feedback: Provides specific insights on predetermined categories.

When to Use Closed Card Sorting

Closed card sorting is most effective in the following scenarios:

Refining an existing website or app structure
Testing the intuitiveness of your current navigation system
Comparing different organizational schemes
Validating category labels and content groupings

Frequently Asked Questions

What's the difference between open and closed card sorting?: In open card sorting, participants create their own categories, while in closed card sorting, categories are predefined by the researcher.
How many participants do I need for a closed card sort?: Typically, 15-20 participants can provide reliable results for a closed card sort.
Can closed card sorting be conducted remotely?: Yes, many online tools allow for remote closed card sorting sessions, making it convenient for distributed teams and participants.