Here are 30 multiple-choice questions on threshold in psychophysics:
1. What does "AL" stand for in psychophysics?
A) Absolute Level
B) Acoustic Loudness
C) Absolute Threshold
D) Auditory Limit
Answer: C) Absolute Threshold
2. The absolute threshold represents:
A) The maximum intensity of a stimulus that can be detected
B) The minimum intensity of a stimulus that can be detected
C) The point at which a stimulus becomes painful
D) The point at which a stimulus becomes enjoyable
Answer: B) The minimum intensity of a stimulus that can be detected
3. What does "DL" stand for in psychophysics?
A) Differential Limit
B) Difference Level
C) Difference Limen
D) Discrimination Limit
Answer: C) Difference Limen
4. The difference limen (DL) is also known as:
A) Just Noticeable Difference (JND)
B) Absolute Threshold
C) Threshold of Consciousness
D) Discrimination Level
Answer: A) Just Noticeable Difference (JND)
5. The difference limen refers to:
A) The smallest change in stimulus intensity that can be detected
B) The maximum intensity of a stimulus that can be detected
C) The point at which a stimulus becomes painful
D) The threshold for conscious perception
Answer: A) The smallest change in stimulus intensity that can be detected
6. Which of the following statements about the difference limen is true?
A) It decreases as the intensity of the stimulus increases.
B) It is the same for all sensory modalities.
C) It is also known as the absolute threshold.
D) It is measured in decibels.
Answer: A) It decreases as the intensity of the stimulus increases.
7. What does "TL" stand for in psychophysics?
A) Tactile Level
B) Threshold Level
C) Tonal Loudness
D) Temporal Limit
Answer: B) Threshold Level
8. The threshold level (TL) refers to:
A) The maximum intensity of a stimulus that can be detected
B) The minimum intensity of a stimulus that can be detected
C) The point at which a stimulus becomes painful
D) The point at which a stimulus becomes enjoyable
Answer: B) The minimum intensity of a stimulus that can be detected
9. The threshold level (TL) is often used interchangeably with:
A) Difference Limen (DL)
B) Absolute Threshold (AT)
C) Just Noticeable Difference (JND)
D) Discrimination Threshold (DT)
Answer: B) Absolute Threshold (AT)
10. In psychophysics, the term "threshold" generally refers to:
A) The maximum intensity of a stimulus that can be detected
B) The minimum intensity of a stimulus that can be detected
C) The point at which a stimulus becomes painful
D) The point at which a stimulus becomes enjoyable
Answer: B) The minimum intensity of a stimulus that can be detected
11. The difference between the absolute threshold and the difference limen is:
A) The absolute threshold refers to the smallest detectable change in stimulus intensity.
B) The difference limen refers to the smallest detectable stimulus intensity.
C) The absolute threshold refers to the minimum intensity needed to detect a stimulus.
D) The difference limen refers to the maximum intensity of a stimulus that can be detected.
Answer: C) The absolute threshold refers to the minimum intensity needed to detect a stimulus.
12. Which of the following is an example of an absolute threshold?
A) Detecting the faintest sound in a quiet room
B) Noticing a slight change in the brightness of a light
C) Feeling the softest touch on your skin
D) Distinguishing between two similar colors
Answer: A) Detecting the faintest sound in a quiet room
13. The difference limen is typically measured using:
A) The method of adjustment
B) The method of limits
C) The method of constant stimuli
D) The method of paired comparisons
Answer: C) The method of constant stimuli
14. Which of the following factors can affect the absolute threshold?
A) Individual differences
B) Age
C) Experience
D) All of the above
Answer: D) All of the above
15. The concept of the difference limen is closely related to:
A) Sensory adaptation
B) Sensory acuity
C) Sensory transduction
D) Sensory overload
Answer: B) Sensory acuity
16. The difference threshold refers to the:
A) Maximum intensity of a stimulus that can be detected
B) Minimum intensity of a stimulus that can be detected
C) Smallest change in stimulus intensity that can be detected
D) Largest change in stimulus intensity that can be detected
Answer: C) Smallest change in stimulus intensity that can be detected
17. The ability to detect changes in stimulus intensity is known as:
A) Sensory adaptation
B) Sensory acuity
C) Sensory transduction
D) Sensory overload
Answer: B) Sensory acuity
18. The method of limits involves:
A) Presenting stimuli in ascending order of intensity until they can be detected
B) Presenting stimuli in descending order of intensity until they cannot be detected
C) Presenting stimuli at random intensities and asking participants to respond
D) Presenting stimuli at a fixed intensity and asking participants to adjust it until it can be detected
Answer: A) Presenting stimuli in ascending order of intensity until they can be detected
19. Which of the following statements about thresholds is true?
A) The absolute threshold is always higher than the difference limen.
B) The difference limen is always higher than the threshold level.
C) The absolute threshold is constant across individuals and situations.
D) The threshold level varies depending on factors such as attention and fatigue.
Answer: D) The threshold level varies depending on factors such as attention and fatigue.
20. The absolute threshold is typically measured using which method?
A) Method of adjustment
B) Method of limits
C) Method of constant stimuli
D) Method of paired comparisons
Answer: B) Method of limits
21. Which of the following statements about threshold levels is true?
A) Threshold levels are always fixed and unchangeable.
B) Threshold levels vary depending on factors such as sensory sensitivity and attention.
C) Threshold levels are the same for all sensory modalities.
D) Threshold levels decrease as stimulus intensity increases.
Answer: B) Threshold levels vary depending on factors such as sensory sensitivity and attention.
22. The threshold level refers to:
A) The minimum intensity of a stimulus that can be detected
B) The maximum intensity of a stimulus that can be detected
C) The point at which a stimulus becomes painful
D) The point at which a stimulus becomes enjoyable
Answer: A) The minimum intensity of a stimulus that can be detected
23. Which of the following is an example of a difference limen?
A) Distinguishing between two colors that are very similar
B) Detecting the faintest sound in a quiet room
C) Noticing a slight change in the brightness of a light
D) Feeling the softest touch on your skin
Answer: A) Distinguishing between two colors that are very similar
24. The threshold level is often used interchangeably with:
A) Difference Limen (DL)
B) Absolute Threshold (AT)
C) Just Noticeable Difference (JND)
D) Discrimination Threshold (DT)
Answer: B) Absolute Threshold (AT)
25. Which method is commonly used to measure the absolute threshold?
A) Method of adjustment
B) Method of constant stimuli
C) Method of paired comparisons
D) Method of limits
Answer: D) Method of limits
26. The absolute threshold represents:
A) The minimum intensity of a stimulus that can be detected
B) The maximum intensity of a stimulus that can be detected
C) The point at which a stimulus becomes painful
D) The point at which a stimulus becomes enjoyable
Answer: A) The minimum intensity of a stimulus that can be detected
27. Which of the following is NOT a method used to measure thresholds in psychophysics?
A) Method of limits
B) Method of constant stimuli
C) Method of cognitive psychology
D) Method of adjustment
Answer: C) Method of cognitive psychology
28. The difference limen (DL) is also known as:
A) Just Noticeable Difference (JND)
B) Absolute Threshold (AT)
C) Threshold of Consciousness
D) Discrimination Level
Answer: A) Just Noticeable Difference (JND)
29. The absolute threshold refers to:
A) The maximum intensity of a stimulus that can be detected
B) The minimum intensity of a stimulus that can be detected
C) The point at which a stimulus becomes painful
D) The point at which a stimulus becomes enjoyable
Answer: B) The minimum intensity of a stimulus that can be detected
30. The difference threshold (DL) is the:
A) Smallest change in stimulus intensity that can be detected
B) Maximum intensity of a stimulus that can be detected
C) Point at which a stimulus becomes painful
D) Point at which a stimulus becomes enjoyable
Answer: A) Smallest change in stimulus intensity that can be detected
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