CRC Product Testing & Sensory Evaluation 2

Question 1

In a triangle test, what is the probability of choosing the odd sample correctly by guessing alone?

Accepted Answer

1/3

Answer

With three samples and one odd, chance is 1 in 3.

Question 2

Which discrimination test presents a reference sample first, then two coded samples, one matching the reference?

Accepted Answer

Duo-trio

Answer

The duo-trio test asks which coded sample matches the reference.

Question 3

Why are three-digit random codes used to label samples in sensory testing?

Accepted Answer

To reduce panelist bias from labels

Answer

Random codes prevent letters or numbers from biasing perception.

Question 4

What is a Type II error (beta) in a difference test?

Accepted Answer

Failing to detect a real difference

Answer

Type II error means missing a true difference between products.

Question 5

Which is the best palate cleanser for most sensory evaluations?

Accepted Answer

Room-temperature purified water and unsalted crackers

Answer

Neutral water and unsalted crackers minimally interfere with flavor.

CRC - Certified Research Chef Practice Test