Required Readings

Question 1

What is target prevalence?

Answer 1

describes the salience (or visibility) of an object or objects in the environment and influences visual search

Question 2

What was the typical pattern

Answer 2

errors increased dramatically as and consistently as prevalence decreased

Question 3

How did changing the prevalence affect the trial?

Answer 3

There was an increase in the number of errors that occurred

Question 4

Why does changing the prevalence cause there to be more errors?

Answer 4

observers need a threshold for quitting when no target has been found

Question 5

What happens when targets are frequent?

Answer 5

A fast ‘No’ response will lead to mistakes. Meaning that No will have a slower reaction time compared to ‘Yes’ in a high prevalence search

Question 6

What percentage of users confessed to using their cell phones whilst driving?

Answer 6

85%

Question 7

Driving inattention and other human error can be linked to what percentage of motor vehicle accidents?

Answer 7

50%

Question 8

What often causes memory failures?

Answer 8

Omissions (sometimes involve errors of commission)