Psychology Exam

Test # 2
Chapter 3-4 100 Questions

1. __________ are the raw data of experience, based on the activation of certain receptors located in the various sensory organs.
a) Perceptions
b) Emotions
c) Cognitions
d) Sensations

2. __________ furnishes the raw material of sensory experience, whereas __________ provides an interpretation of that material.
a) Sensation; transduction medium
b) Perception; transduction
c) Sensation; perception
d) Perception; sensation

3. Perception is the __________
a) process by which people take all the sensations they experience at any given moment and interpret them in some meaningful fashion.
b) action of physical stimuli on receptors leading to sensations.
c) interpretation of memory based on selective attention.
d) act of selective attention from sensory storage.

4. The difference between not being able to perceive a stimulus and just barely perceiving it is termed __________
a) Weber’s law.
b) the absolute threshold.
c) the perceptual set.
d) the difference threshold.

5. The smallest amount of a particular stimulus required to produce any sensation at all in the person to whom the stimulus is presented is the __________
a) absolute threshold
b) minimum threshold
c) difference threshold
d) noticeable threshold

6. The difference threshold is defined as the degree of change in a stimulus level that is required in order for a person to detect a change __________ of the time.
a) 25 percent
b) 75 percent
c) 50 percent
d) 100 percent

7. The term just noticeable difference is synonymous with __________.
a) separation threshold
b) response threshold
c) difference threshold
d) absolute threshold

8. The lowest stimulus intensity required for detection is the __________ and the smallest noticeable difference between a standard stimulus intensity and another stimulus value is the __________.
a) absolute threshold; difference threshold
b) base value; just noticeable difference (jnd)