Intro/Research method

Question 1

History before WW1

Answer 1

Focused on the machine, not the person

Question 2

History between ww1 and ww2

Answer 2

focus started to shift to adjusting machine, slower development time

Question 3

After ww2

Answer 3

research expanded to whole systems instead of one equipment

Question 4

Ergonomics:

Answer 4

the study of designing that best fits the human body

Question 5

Human factors:

Answer 5

the science of understanding the properties of human capability and applying to the development of systems/services

Question 6

Human-Machine system diagram

Answer 6

Human: Perception -> cognition -> action
System: controls -> operation -> display

Question 7

Independent variable

Answer 7

the variables that are manipulated(changed)

Question 8

Dependent variable

Answer 8

The variable that is measured

Question 9

Construct validity

Answer 9

does the measure actually measure what is intended?

Question 10

Internal validity

Answer 10

are we actually measuring what we think we’re measuring?

Question 11

External validity

Answer 11

Can the results be generalized to other settings?

Question 12

ecological validity

Answer 12

do the behaviors actually reflect behaviors that actually occur in a natural setting?

Question 13

gulf of execution

Answer 13

gap between user’s goal and ability to execute

Question 14

gulf of evaluation

Answer 14

degree to which representations can be interpreted by the user