Human Factors Engineering- Final
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Donder's RT - CORRECT ANSWER - • A: 1 stimulus, 1 possible response
• B: 2+ stimuli, 2+ possible responses
• C: 2+ stimuli, 1 stim maps to a response
• Stimulus identification time= C- A
• Response selection time= B - C
Determinants in Donder's RT - CORRECT ANSWER - • Type of stimuli
• Cluttered displays
Stimulus compatibility - CORRECT ANSWER - • Which way do you turn the knob to
make the indicator move to the right?
Population stereotypes - CORRECT ANSWER - • How people expect a control to work
based on past experience
• Which way do you turn the screw?
• 2 aircraft approaching head-on, which way do they turn?
Learning and Skill acquisition - CORRECT ANSWER - • Practice lowers RT
• Inverse learning curve for skill acquisition
Sometimes operations are better, faster with more keystrokes and greater meaning, vs. -
CORRECT ANSWER - • Fewer keystrokes, vague comments
• Hysteris during performance improvement
,Training Programs - CORRECT ANSWER - • Transfer of training: learning new material
or tasks is facilitated to the extent that new and old material is similar with respect to
o Stimuli
o Responses
o Reinforcement structure
Taxonomy of Pyschomotor Skills - CORRECT ANSWER - • US military project to
establish recruits abilities and training goals
• Factor analysis study
• 11 Psychomotor skill factors
o Control precision—Involving tasks requiring finely controlled muscular adjustments, such as
moving a lever to a precise setting
Some Types of Controls - CORRECT ANSWER - • Discrete vs. Continuous
• Pushbutton vs discrete
• If the 2 deimensions of control are depicted as two 1-D displays, then two 1-D controls should
be used instead
• Hierarchical controls can reduce the number of dims operating at once, but they add chances
for mode error
Size of Controls - CORRECT ANSWER - • In old days, large size meant that large
physical forces were being moved
Shape - CORRECT ANSWER - • Helps recognition without complete visual attention
• Standard joysticks on airplanes
• Navy underwater series of knobs
• Beer taps on power plant controls
Space of Controls - CORRECT ANSWER - • Total amount of action, or range of action
resulting from the control motion
, Resistance - CORRECT ANSWER - • Static resistance- initial counterforce then free
operation
• Elastic (spring loaded)-
• Viscous (dampens velocity) - proportional to speed of motion
• Inertial (dampens acceleration or "jack-rabbit starts)
Synthesizer controls - CORRECT ANSWER - Grouped by function primarily
Feedback and Control - CORRECT ANSWER - • -Open loop
• -Closed loop
• -Feedback and be positive or negative
Fitts' Law - CORRECT ANSWER - • MT= A + b (2D/W)
• MT= Movement time
• D= Distance to the target
• W = Width of the target
• A and b are regression constants
Fitts' Law assumes a single movement
For multiple submovements, Fitts' law generalizes to - CORRECT ANSWER - o MT= a +
b(D/W) 1/n
o N= number of submovements
Motor Control - CORRECT ANSWER - • Robotic therapy device assists stroke survivors
to re-establish neuromotor pathways
• Comparison of mathematical models for emulating reach-grasp trajectories
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Donder's RT - CORRECT ANSWER - • A: 1 stimulus, 1 possible response
• B: 2+ stimuli, 2+ possible responses
• C: 2+ stimuli, 1 stim maps to a response
• Stimulus identification time= C- A
• Response selection time= B - C
Determinants in Donder's RT - CORRECT ANSWER - • Type of stimuli
• Cluttered displays
Stimulus compatibility - CORRECT ANSWER - • Which way do you turn the knob to
make the indicator move to the right?
Population stereotypes - CORRECT ANSWER - • How people expect a control to work
based on past experience
• Which way do you turn the screw?
• 2 aircraft approaching head-on, which way do they turn?
Learning and Skill acquisition - CORRECT ANSWER - • Practice lowers RT
• Inverse learning curve for skill acquisition
Sometimes operations are better, faster with more keystrokes and greater meaning, vs. -
CORRECT ANSWER - • Fewer keystrokes, vague comments
• Hysteris during performance improvement
,Training Programs - CORRECT ANSWER - • Transfer of training: learning new material
or tasks is facilitated to the extent that new and old material is similar with respect to
o Stimuli
o Responses
o Reinforcement structure
Taxonomy of Pyschomotor Skills - CORRECT ANSWER - • US military project to
establish recruits abilities and training goals
• Factor analysis study
• 11 Psychomotor skill factors
o Control precision—Involving tasks requiring finely controlled muscular adjustments, such as
moving a lever to a precise setting
Some Types of Controls - CORRECT ANSWER - • Discrete vs. Continuous
• Pushbutton vs discrete
• If the 2 deimensions of control are depicted as two 1-D displays, then two 1-D controls should
be used instead
• Hierarchical controls can reduce the number of dims operating at once, but they add chances
for mode error
Size of Controls - CORRECT ANSWER - • In old days, large size meant that large
physical forces were being moved
Shape - CORRECT ANSWER - • Helps recognition without complete visual attention
• Standard joysticks on airplanes
• Navy underwater series of knobs
• Beer taps on power plant controls
Space of Controls - CORRECT ANSWER - • Total amount of action, or range of action
resulting from the control motion
, Resistance - CORRECT ANSWER - • Static resistance- initial counterforce then free
operation
• Elastic (spring loaded)-
• Viscous (dampens velocity) - proportional to speed of motion
• Inertial (dampens acceleration or "jack-rabbit starts)
Synthesizer controls - CORRECT ANSWER - Grouped by function primarily
Feedback and Control - CORRECT ANSWER - • -Open loop
• -Closed loop
• -Feedback and be positive or negative
Fitts' Law - CORRECT ANSWER - • MT= A + b (2D/W)
• MT= Movement time
• D= Distance to the target
• W = Width of the target
• A and b are regression constants
Fitts' Law assumes a single movement
For multiple submovements, Fitts' law generalizes to - CORRECT ANSWER - o MT= a +
b(D/W) 1/n
o N= number of submovements
Motor Control - CORRECT ANSWER - • Robotic therapy device assists stroke survivors
to re-establish neuromotor pathways
• Comparison of mathematical models for emulating reach-grasp trajectories
