1.1b Psychological Factors

In which scale is the order of the values important, but the differences between the values unimportant?

• Ratio

• Nominal

• Interval

• Ordinal

Which method of collecting physiological factor data is the most appropriate when asking users to rate the comfort levels of different beds?

• Ratio

• Nominal

• Interval

• Ordinal

What is the final stage of the human information processing system, which results in a physiological response?

• Sensory process

• Input

• Central process

• Motor process

Which part of the human information processing system would most likely be responsible for a user forgetting how to operate a product?

• Motor process

• Input process

• Sensory process

• Central process

Designers use an understanding of human factors to...

I.   Increase safety

II.  Increase ease of use

III. Reduce stress and fatigue

• I and II

• I and III

• II and III

• I, II and III

What type of scale would be used to collect qualitative data on comfort?

• Interval

• Ratio scale

• Ordinal scale

• Nominal scale

Which of the following is an example of qualitative data collection?

• Using statistical techniques to analyse data

• Using a scale model to carry out comparative data analysis

• Using a transcript from an interview

• Using computer simulation to evaluate performance results

Which of the following can be used to ensure a worker remains alert?

• Keeping the duration of tasks short

• Providing dim light in the working environment

• Removing all background sounds in the room

• Providing repetitive tasks

The kitchen is often referred to as the centre of the home.

A smart refrigerator, see image, can help manage the consumption of food which will reduce the amount of food waste a household generates. Different members of the same household can program the smart refrigerator to keep a record of what kinds of food and drink products are being stored and consumed. It is also possible to use interactive online programs such as Expert Follow the Chef with the smart refrigerator. This enables individuals to learn various cooking skills and experiment with ingredients from around the world.

Psychological factors have been considered to improve the design of the smart refrigerator.

Which of the following are the four psychological factors used in the

design of the smart refrigerator?

• Comfort, health, performance and user’s safety

• Health, comfort, performance and price

• Comfort, performance, price and user’s safety

• Performance, health, price and user’s safety