AEP Human Factors Engineering 3

Question 1

In signal detection theory (SDT), a liberal criterion (low β) results in:

Accepted Answer

More hits but also more false alarms

Answer

A liberal criterion means the observer responds 'signal present' more readily, increasing both hits and false alarms simultaneously.

Question 2

Which workload measurement technique is considered the LEAST intrusive to primary task performance?

Accepted Answer

Subjective rating scales (e.g., NASA-TLX)

Answer

Subjective rating scales like NASA-TLX are administered after task completion and do not compete for resources during the primary task.

Question 3

A pilot fixates on a warning light for 2 seconds but fails to recognize its meaning. This is an example of:

Accepted Answer

Looked-but-failed-to-see error

Answer

Looked-but-failed-to-see errors occur when a stimulus is detected (fixated) but not processed to the level of conscious recognition or comprehension.

Question 4

The GOMS model in human-computer interaction stands for:

Accepted Answer

Goals, Operations, Methods, Selections

Answer

GOMS (Goals, Operators, Methods, and Selection rules) is a family of techniques for analyzing and predicting user interaction with computer interfaces.

Question 5

Which type of human error involves a correct action applied to the wrong object or at the wrong time?

Accepted Answer

Slip

Answer

Slips are execution failures where the intention is correct but the action deviates — such as pressing the wrong button or acting at the wrong moment.

(AEP) Associate Ergonomics Professional Practice Test

(AEP) Associate Ergonomics Professional Practice Test

AEP Human Factors Engineering 3