SHS 311 EXAM 3 QUESTIONS WITH CORRECT
ANSWERS 2026
1. Objective psychophysics-ANSWER- Detection, discrimination, and recognition
2. Goal of objective psychophysics-ANSWER- Measure of what a listener can respond to
3. Subjective psychophysics-ANSWER- sensory scaling and matching
4. Goal of subjective psychophysics-ANSWER- measure of what a listener does respond to
5. Classical methods of objective psychophysics-ANSWER- Method of constant stimuli, method
of limits,
method of adjustment
6. Method of constant stimuli-ANSWER- Signal level varies and listener indicates if they
detected the signal
7. Method of limits-ANSWER- Signal level is decreased in successive steps and then increases in
successive steps. At each
presentation, the listener indicates if they heard the signal.
8. Method of adjustment-ANSWER- The listener adjusts the signal until it is just barely
detectable. This is the level of
threshold.
9. Absolute threshold-ANSWER- The stimulus intensity that an observer can just barely detect
10. Difference threshold-ANSWER- The minimum intensity that deviates from a constant
intensity to produce a
noticeable perceptual difference
11. What is a psychometric function?-ANSWER- A graph that shows the relationship between
the percent correct
(y axis) and the stimulus parameter(x axis)
12. Hit-ANSWER- patient says yes and signal was present (correct detection)
13. Miss-ANSWER- patient says no and signal was present (incorrect rejection)
14. False alarm-ANSWER- patient says yes and signal wasn't present (incorrect detection)
, 15. Correct rejection-ANSWER- patient says no and there is no signal present
16. Liberal vs conservative-ANSWER- Liberals have more hits
Conservatives have more correct rejections and less false alarms
17. There is definitely "correct" or "incorrect" answer. What task is this?-ANSWER- Objective
psychophysics
18. The area under the ROC is...-ANSWER- A measure of sensitivity that does not change with
bias
19. Minimal audible field (MAF)-ANSWER- the minimum detectable level of a sound is
measured at the position of
head in a free field with negligible reflections form surfaces. Typically, the sound is assumed to
come from directly in
front of listeners
20. Minimal audible pressure (MAP)-ANSWER- the minimum detectable level of a sound is
measured inside the
ear canal close to the ear drum. Typically, the sound is delivered by headphones. MAP has to be
measured separately
for each ear
1/3
SHS 311 Exam 3
Study online at https-ANSWER-//quizlet.com/_2t9x6i
21. What are the lower and upper limits of the "dynamic range" of hearing ?-ANSWER- The
dynamic range of hearing is the range from the threshold of detection to the upper threshold of
pain/discomfort
22. jnd-ANSWER- just noticeable difference; measure for Weber's fraction
23. Definition of masking-ANSWER- the threshold for detecting a sound is increased due to the
presence of another
sound
24. Forms of temporal masking-ANSWER- Forward- Masker first, then signal
ANSWERS 2026
1. Objective psychophysics-ANSWER- Detection, discrimination, and recognition
2. Goal of objective psychophysics-ANSWER- Measure of what a listener can respond to
3. Subjective psychophysics-ANSWER- sensory scaling and matching
4. Goal of subjective psychophysics-ANSWER- measure of what a listener does respond to
5. Classical methods of objective psychophysics-ANSWER- Method of constant stimuli, method
of limits,
method of adjustment
6. Method of constant stimuli-ANSWER- Signal level varies and listener indicates if they
detected the signal
7. Method of limits-ANSWER- Signal level is decreased in successive steps and then increases in
successive steps. At each
presentation, the listener indicates if they heard the signal.
8. Method of adjustment-ANSWER- The listener adjusts the signal until it is just barely
detectable. This is the level of
threshold.
9. Absolute threshold-ANSWER- The stimulus intensity that an observer can just barely detect
10. Difference threshold-ANSWER- The minimum intensity that deviates from a constant
intensity to produce a
noticeable perceptual difference
11. What is a psychometric function?-ANSWER- A graph that shows the relationship between
the percent correct
(y axis) and the stimulus parameter(x axis)
12. Hit-ANSWER- patient says yes and signal was present (correct detection)
13. Miss-ANSWER- patient says no and signal was present (incorrect rejection)
14. False alarm-ANSWER- patient says yes and signal wasn't present (incorrect detection)
, 15. Correct rejection-ANSWER- patient says no and there is no signal present
16. Liberal vs conservative-ANSWER- Liberals have more hits
Conservatives have more correct rejections and less false alarms
17. There is definitely "correct" or "incorrect" answer. What task is this?-ANSWER- Objective
psychophysics
18. The area under the ROC is...-ANSWER- A measure of sensitivity that does not change with
bias
19. Minimal audible field (MAF)-ANSWER- the minimum detectable level of a sound is
measured at the position of
head in a free field with negligible reflections form surfaces. Typically, the sound is assumed to
come from directly in
front of listeners
20. Minimal audible pressure (MAP)-ANSWER- the minimum detectable level of a sound is
measured inside the
ear canal close to the ear drum. Typically, the sound is delivered by headphones. MAP has to be
measured separately
for each ear
1/3
SHS 311 Exam 3
Study online at https-ANSWER-//quizlet.com/_2t9x6i
21. What are the lower and upper limits of the "dynamic range" of hearing ?-ANSWER- The
dynamic range of hearing is the range from the threshold of detection to the upper threshold of
pain/discomfort
22. jnd-ANSWER- just noticeable difference; measure for Weber's fraction
23. Definition of masking-ANSWER- the threshold for detecting a sound is increased due to the
presence of another
sound
24. Forms of temporal masking-ANSWER- Forward- Masker first, then signal
