CPE CPE Cognitive Ergonomics & Mental Workload Questions and Answers 2

Question 1

In cognitive ergonomics, what is 'inattentional blindness'?

Accepted Answer

Failure to perceive an unexpected stimulus when attention is focused elsewhere

Answer

Vision loss caused by bright computer screens

Answer

Loss of peripheral vision in aging workers

Answer

Cognitive overload causing temporary memory loss

Question 2

The Fitts' Law model in human-computer interaction predicts what?

Accepted Answer

Time to acquire a target as a function of distance and target size

Answer

Number of errors in data entry tasks

Answer

User satisfaction with interface design

Answer

Optimal keyboard layout for minimum keystrokes

Question 3

Which memory system holds information for only a few seconds without rehearsal?

Accepted Answer

Working memory (short-term memory)

Answer

Long-term memory

Answer

Sensory memory

Answer

Procedural memory

Question 4

Error-tolerant design in cognitive ergonomics refers to systems that:

Accepted Answer

Allow users to detect, recover from, or undo errors without catastrophic consequences

Answer

Prevent all possible human errors absolutely

Answer

Eliminate user discretion through full automation

Answer

Require extensive training to avoid errors

Question 5

What is the primary goal of compatible display-control relationships in ergonomics?

Accepted Answer

Align the spatial or conceptual relationship between controls and their corresponding displays

Answer

Reduce equipment cost

Answer

Increase the number of functions per control

Answer

Standardize all controls across industries

Question 6

Dual-task methodology is used in ergonomics research primarily to:

Accepted Answer

Measure the spare cognitive capacity (mental workload) of a primary task

Answer

Improve worker physical fitness

Answer

Train workers to multitask effectively

Answer

Assess physical fatigue in repetitive jobs