Choice Overload

The tendency for people to get overwhelmed when they are presented with a large number of options, often used interchangeably with the term paradox of choice.

Chunking

A process by which individual pieces of an information set are broken down and then grouped together in a meaningful whole.

Cognitive Bias

A systematic error of thinking or rationality in judgment that influence our perception of the world and our decision-making ability.

Cognitive Load

The amount of mental resources needed to understand and interact with an interface.

Doherty Threshold

Productivity soars when a computer and its users interact at a pace (<400ms) that ensures that neither has to wait on the other.

Fitts’s Law

The time to acquire a target is a function of the distance to and size of the target.

Flow

The mental state in which a person performing some activity is fully immersed in a feeling of energized focus, full involvement, and enjoyment in the process of the activity.

Hick’s Law

The time it takes to make a decision increases with the number and complexity of choices.