CSA Research Methodology & Design 4

Question 1

If two samples are always prepared on different days, the day effect and the sample effect are:

Accepted Answer

Confounded

Answer

When two factors always vary together, their effects cannot be separated, so they are confounded.

Question 2

Which consumer test location offers the most control over sample preparation and environment?

Accepted Answer

Central location test (CLT)

Answer

CLTs let researchers standardize preparation, serving, and testing conditions.

Question 3

Which test is most appropriate when the research goal is realistic, extended product use by consumers?

Accepted Answer

Home use test

Answer

Home use tests capture normal usage conditions over time, improving ecological validity.

Question 4

A study shows panel results match instrumental measurements of the same property. This supports the method's:

Accepted Answer

Validity

Answer

Agreement with an independent criterion measure provides evidence of validity.

Question 5

Which ASTM standard guide addresses sensory claim substantiation?

Accepted Answer

ASTM E1958

Answer

ASTM E1958 provides guidance on designing sensory tests to support advertising claims.

CSA - Certified Sensory Analyst Practice Test