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Chapter 3 Sensory Evaluation: The Human Factor
4. Record your partner’s answer in a data table next to the appropriate
code number. Do not name code numbers or give any indication
as to whether your partner’s answer is correct. Close the
container and set it aside.
5. Repeat steps 2 through 4 until all samples have been tested.
6. Return all samples to the shoebox and exchange places with
your partner.
7. Repeat steps 1 through 5.
Data
When all students have completed the lab, your teacher will read the
key. Check to see how many aromas you correctly identifi ed. Compile
your responses with those of your classmates into a class data table.
This table should show how many students in each test group correctly
identifi ed each sample. Compare your correct answers with those of
your classmates.
Calculations
Use the information in the class data table to prepare a bar graph.
This graph should compare the correct responses in each test group
and the total correct responses for each sample.
Questions
1. Which aromas gave you the most diffi culty? Which aromas gave
your classmates the most diffi culty?
2. Which food was most often identifi ed correctly?
3. Why did some students have more diffi culty than other students
with this task?
4. Were the responses of the second member of each pair more or
less accurate? Why?
5. Is taste or aroma more important in food identifi cation? Explain
your answer.