Lecture 8

Why is psychology important in UI/UX design?

• It helps developers create more visually appealing interfaces

• It ensures users have a good experience by understanding how they perceive designs

• It allows designers to create random layouts for variety

• It eliminates the need for user feedback

What does the Doherty Threshold state?

• A system should respond within 3 seconds to keep users engaged

• A system should provide feedback within 400 milliseconds to maintain user attention

• Users lose interest if a page takes more than 10 seconds to load

• Response time has no impact on user productivity

According to Fitts’s Law, which factor makes a button easier to click?

• Its color

• The number of words on it

• Its size and proximity to the pointer

• The shape of the button

Hick’s Law suggests that decision-making time increases with:

• The user’s age

• The number and complexity of choices available

• The brightness of the screen

• The font size of the options

What does Jakob’s Law emphasize in UI/UX design?

• Users prefer unique, experimental designs over familiar layouts

• Users spend most of their time on other websites and expect consistency in design

• Navigation should always be placed at the bottom of the page

• A UI should always be minimalistic with only essential features

What does the Law of Common Region suggest?

• Grouping elements within a boundary helps users perceive them as related

• Users find it easier to navigate when there are no borders

• The more whitespace, the better

• Different colors should be used for each UI element

The Law of Proximity states that elements that are __________ tend to be perceived as related.

• Different colors

• Close together

• Large and bold

• Animated

What is the key takeaway from Miller’s Law?

• People can retain an unlimited number of items in memory

• UI designers should use at least 15 options in a menu

• Users can typically hold 7±2 items in their working memory

• Large buttons are more effective than small ones

What principle does Occam’s Razor emphasize in UI/UX design?

• The most complex solution is usually the best

• Simplicity should be prioritized, choosing the least complex design that works

• Users prefer designs with many options

• Users prefer interfaces filled with decorative elements

How can designers apply Parkinson’s Law to improve UI?

• By adding as many features as possible

• By setting time constraints to encourage efficiency in user interactions

• By allowing users unlimited time to complete tasks

• By making users repeat actions to reinforce learning