2025 VEN 125 Final Exam Best Studying Material
with All Questions from Actual Past Exam and
Correct Answers
What is Aguesia? ----------- Correct Answer ------------ Taste disorder that is the total loss of taste
perception.
What is the trigeminal nerve? ----------- Correct Answer ------------ The 5th cranial nerve that is
responsible for, facial sensations and sensory/motor functions
What is astringency? ----------- Correct Answer ------------ Tactile sensation described as a
drying/rough sensation.
What causes astringency? (regarding wine) ----------- Correct Answer ------------ The interaction
of saliva and whine tannins
What is all you need to know about thresholds? ----------- Correct Answer ------------ They vary
Name 3 types of Discrimination tests: ----------- Correct Answer ------------ 1) Triangle test-
which sample is different (2 are same)
2) Duo-trio- which sample is same as reference
3) Ranking- rank samples in increasing order
Name the 2 types of sensory evaluation: ----------- Correct Answer ------------ 1) Analytical
sensory evaluation (uses methods)
2) Consumer sensory evaluation (uses hedonics)
What is 2 out of 5 test and its probability? ----------- Correct Answer ------------ 5 coded samples
(2 spiked, 3 clean)
p=0.1
What is "p" and "p-1"? ----------- Correct Answer ------------ p= probability that results occurred
by chance
1-p= probability that the difference was perceptible
In the formula for a Z test, X= & N=... ----------- Correct Answer ------------ #correct responses
# total responses
Type I error occurs by... ----------- Correct Answer ------------ Falsely rejecting Ho
Type II error occurs by.... ----------- Correct Answer ------------ Falsely "accepting" Ho
Power depends on: ----------- Correct Answer ------------ 1) Size of difference
2)Chosen alpha
, 3) # judgements
4) Directionality of the test
To minimize Type II error.. ----------- Correct Answer ------------ 1) Use higher alpha
2) Use more judges
TCA= ----------- Correct Answer ------------ 2,4,6-trichloroanisole; cork taint cause
Why is OAV wrong? ----------- Correct Answer ------------ It has to be calculating using the
threshold for THAT wine and never does.
Ranking vs Rating ----------- Correct Answer ------------ Ranking= comparing diff. items directly
to each other
Rating= comparing diff. items on same scale
Why is color virtual? ----------- Correct Answer ------------ You see what is being reflected, the
rest is absorbed.
Why would light source influence color? ----------- Correct Answer ------------ Affects how its
reflected
In a bright light situation.... ----------- Correct Answer ------------ Photopic vision; so only cones,
no rods.
Why is color blindness more common in men? ----------- Correct Answer ------------ X-linked
What is the difference between Taste & Mouthfeel? ----------- Correct Answer ------------ Taste is
mediated by taste receptor cells in taste buds.
Mouthfeel is mediated by free nerve endings in trigeminal nerve.
Type I error formula: ----------- Correct Answer ------------ 1-alpha
Type II error formula: ----------- Correct Answer ------------ 1-beta
If Fcalc>Fcrit: ----------- Correct Answer ------------ Reject null
What is Power? ----------- Correct Answer ------------ Probability that there is a difference, given
one exists.
With random variables: ----------- Correct Answer ------------ You can make assumptions about a
greater array of things.
With fixed variables: ----------- Correct Answer ------------ You can only make assumptions about
what you've studied.
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