Question 1

What is cognitive load in UX?

Accepted Answer

The total mental effort a user must spend to process information and complete a task in their limited working memory. When it exceeds capacity, users struggle, make errors, and abandon tasks.

Question 2

Where does the concept of cognitive load come from?

Accepted Answer

From Cognitive Load Theory, developed by educational psychologist John Sweller in the late 1980s, building on George Miller's earlier work on the limits of working memory.

Question 3

What are the three types of cognitive load?

Accepted Answer

Intrinsic (the inherent complexity of the task), extraneous (load caused by how the design presents information), and germane (productive effort spent learning and building understanding).

Question 4

Which type of cognitive load should a product manager focus on?

Accepted Answer

Extraneous load. It is caused by design, it is pure waste, and it is entirely within your control to reduce, unlike intrinsic complexity or productive germane effort.

Question 5

Can you eliminate intrinsic cognitive load?

Accepted Answer

Not without changing the task itself, since it is the inherent complexity of what the user is doing. But you can manage it, for example by breaking a complex task into smaller steps.

Question 6

What is Miller's Law?

Accepted Answer

The finding, from George Miller's 1956 work, that people can hold only about seven items, plus or minus two, in working memory at once. It underpins the case for limiting what you present.

Question 7

How do you reduce cognitive load in a product?

Accepted Answer

Remove unnecessary elements, break tasks into steps, favor recognition over recall, use familiar patterns, provide smart defaults, and reduce the number of choices at any one moment.

Question 8

Why does cognitive load matter more than adding features?

Accepted Answer

Because every feature imposes load on all users who must notice and interpret it. Often the winning move is removing load rather than adding capability that overwhelms.

Question 9

How is cognitive load related to "don't make me think"?

Accepted Answer

That popular usability principle is essentially a call to minimize extraneous cognitive load, keeping the interface so clear that users spend no effort fighting it.

Question 10

Can cognitive load be measured?

Accepted Answer

Not directly, but it shows up in behavior. Drop-off points, hesitation, and repeated errors in your analytics are often cognitive load made visible.

What Is Cognitive Load in UX?

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