IE 355 Study Guide Exam With Complete Solutions
Gratings are used to measure contrast sensitivity by varying the luminance difference
between the light and dark bars, and conducting a detection experiement. This process can
then be repeated using different spatial frequencies (ie thickness of bars). What is a notable
result of these studies? - ANSWER The eye is more sensitive to contrast difference in the
middle frequencies compared to the extreme high and low frequencies.
Chapanis redesigned some controls in the flight decks of planes during WW2. Trainees were
crashing planes by pulling up the landing gear during landing. What principle did Chapanis's
redesgin illustrate (as states in lecture?) - ANSWER Human or pilot error is not simply random
fallibility of people, but shoudl be seen as caused by factors that can, in principle, be
identified and fixed, as in this case: poor control design.
which statement is false? - ANSWER human factors is based upon using a designers own
intuition and personal reactions to determine what is easy to use, safe to use, and efficient
Mackworth's (1948) clock task was discussed in the lectures. Which statement or statements
below are false? - ANSWER both b and c
research with the mackworth clock shows that signal detection accuracy in a viligance task
sharply declines after 30 minutes (the vigilance decrement) C: Mackworth;s research shows
that two tasks can be shared better if they use different processing codes (ex a spatial task
and a verbal task)
, which of the following is false? - ANSWER my old space heater i bought had no thermostat,
which means it would just keep heating the room hotter and hotter -- regardless of the air
temperature. It was a closed loop system
two workers who monitor faults in a network at their computer stations have different (single)
tasks. Both perform at the required level on their respective tasks. however, one complains of
too much mental workload. Which of the following approaches for measuring mental
workload will be the worst choice (according to lecture)? - ANSWER simply, straightforwardly,
comparing the perfomance on their respective tasks.
Multi-store model of memory, limited to just 5-9 items - ANSWER Sensory store
I am given this assignment...... speed and accuracy are reffered to as - ANSWER Dependent
variables
Car instrument panel...clustered together...advantage because monitoring displays requires -
ANSWER Selective attention
according to multiple resource theories of divided attention - ANSWER E (ALL OF THE ABOVE)
(there are multiple pools of attention resources, two tasks use the same perceptual modality.
It is easier to perform two tasks if they use diff processing codestwo tasks that use diff info
processing stages than two tasks that use the sameprocessing stages.)
Expert chess players... when expert memory is the same as non expert because chess pieces
are randomly distributed - ANSWER Chunking
Gratings are used to measure contrast sensitivity by varying the luminance difference
between the light and dark bars, and conducting a detection experiement. This process can
then be repeated using different spatial frequencies (ie thickness of bars). What is a notable
result of these studies? - ANSWER The eye is more sensitive to contrast difference in the
middle frequencies compared to the extreme high and low frequencies.
Chapanis redesigned some controls in the flight decks of planes during WW2. Trainees were
crashing planes by pulling up the landing gear during landing. What principle did Chapanis's
redesgin illustrate (as states in lecture?) - ANSWER Human or pilot error is not simply random
fallibility of people, but shoudl be seen as caused by factors that can, in principle, be
identified and fixed, as in this case: poor control design.
which statement is false? - ANSWER human factors is based upon using a designers own
intuition and personal reactions to determine what is easy to use, safe to use, and efficient
Mackworth's (1948) clock task was discussed in the lectures. Which statement or statements
below are false? - ANSWER both b and c
research with the mackworth clock shows that signal detection accuracy in a viligance task
sharply declines after 30 minutes (the vigilance decrement) C: Mackworth;s research shows
that two tasks can be shared better if they use different processing codes (ex a spatial task
and a verbal task)
, which of the following is false? - ANSWER my old space heater i bought had no thermostat,
which means it would just keep heating the room hotter and hotter -- regardless of the air
temperature. It was a closed loop system
two workers who monitor faults in a network at their computer stations have different (single)
tasks. Both perform at the required level on their respective tasks. however, one complains of
too much mental workload. Which of the following approaches for measuring mental
workload will be the worst choice (according to lecture)? - ANSWER simply, straightforwardly,
comparing the perfomance on their respective tasks.
Multi-store model of memory, limited to just 5-9 items - ANSWER Sensory store
I am given this assignment...... speed and accuracy are reffered to as - ANSWER Dependent
variables
Car instrument panel...clustered together...advantage because monitoring displays requires -
ANSWER Selective attention
according to multiple resource theories of divided attention - ANSWER E (ALL OF THE ABOVE)
(there are multiple pools of attention resources, two tasks use the same perceptual modality.
It is easier to perform two tasks if they use diff processing codestwo tasks that use diff info
processing stages than two tasks that use the sameprocessing stages.)
Expert chess players... when expert memory is the same as non expert because chess pieces
are randomly distributed - ANSWER Chunking
