psychology mcat ek exam 1

Question 1

auditory absolute thresholds

Question 2

visual relative difference thresholds

Question 3

feature detection

Question 4

changing the intensity level of a stimulus is likely a test for

Answer 4

detection thresholds

Question 5

detection thresholds refer to

Answer 5

the minimum change in a stimulus necessary for a difference to be noticed

Question 6

absolute thresholds refer to

Answer 6

the minimum intensity necessary for a stimulus to be perceived reliably (reliably usually being defined as with 50% accuracy)

Question 7

question stem specifically refers to this 50% accuracy target, meaning

Answer 7

the investigators are almost certainly testing for absolute thresholds

Question 8

visual thresholds, whereas the question mentions

Answer 8

no change in visual stimulus intensity, and nothing about interest in long term memory formation or feature detection