Panelist Screening: Session 2
Overview
Tasks: ~15 minutes
- Take attendance.
- Seating assignment based upon name tag placement (different arrangement from Session #1).
- Panelists are asked to introduce themselves to the group and share one thing they learned or found interesting from Session #1.
Resources
Name Tent Cards.
Guidelines for Success Criteria
- Interactions: Observe introductions and comments on the one thing learned/found interesting from session #1.
- Comments: Subjective comments on individual interactions within the group.
Activity #5: Basic Taste Recall
Task: ~10 minutes
- Panelists are provided with basic taste solutions again. Instead of 10 samples, panelists may see only 6 samples this time (sweet, salt, sour*2, bitter, and umami).
- Samples are served in a fixed order. The immediate feedback is added but not shown to panelists in this test. You are wanting to see if panelists learned from the exercise the previous day.
Resources
- Data collection devices (iPads/Tablets/Desktop).
- Activity #5: “Identifying Basic Tastes” test.
- Basic Taste Solutions (sucrose, salt, caffeine, citric acid, MSG, and distilled water).
- Glassware, Napkins.
- 1 oz. cups – labelled with 3 digit codes.
- 10 oz. water cups.
- Spit cups + lids.
- Need 800 g - ~20 g/panelist. Make 1000 g in case of spills.
For greater accuracy, we used units of measurement for mass (grams) rather than units of measurement for volume (millilitres).
Example solutions:
Code
| Taste
| Taste (grams)
| Distilled Water (grams)
|
185
| Umami (MSG 0.07%)
| 0.7
| 1000
|
347
| Sweet (Sucrose 2.5%)
| 25
| 975
|
992
| Sour (Citric Acid 0.085%)
| 0.85
| 1000
|
406
| Salt (Sodium Chloride 0.5%)
| 5
| 995
|
711
| Sour (Citric Acid 0.085%)
| 0.85
| 1000
|
260
| Bitter (Caffeine 0.065%)
| 0.65
| 1000
|
Guidelines for Success Criteria
- Create the ‘Hits and misses report’ to determine how many times a panelist was correct.
- Points:
- Up to 6.
- Expect each panelist will identify each taste correctly at least once.
Activity #6: Discrimination – Triangle Test – (Cola Example)
Task: ~8 minutes
- Panelists are asked to identify the different sample, in a triangle test.
- Cola is used in this example, but alternate products may be used.
- Enable feedback to panelists.
Resources
- Data collection devices (iPads/Tablets/Desktop).
- Activity #6: “Triangle” test.
- Cola (Brand A & Brand A Diet).
- 2 oz. cups – labelled with 3 digit codes.
Example samples:
Code
1
| Code 2
| Product
|
114
| 628
| Brand A
|
393
| 725
| Brand A Diet
|
Guidelines for Success Criteria
Points: Up to 1 point for correctly identifying the different sample. 0 points for incorrect identification.
Activity #7: Discrimination – Tetrad Test – (Chips Example)
Task: ~8 minutes
- Panelists are asked to group the samples based on similarity, in a tetrad test.
- Potato chips are used in this example, but alternate products may be used.
- Enable feedback to panelists.
Resources
- Data collection devices (iPads/Tablets/Desktop).
- Activity #7: “Tetrad” test.
- Chips (Brand A Regular Salt and Brand A Reduced Salt).
- 2 oz. cups – labelled with 3 digit codes.
Example samples:
Code
1
| Code 2
| Product
|
667
| 243
| Brand A
Regular Salt
|
504
| 819
| Brand A Reduced Salt |
Guidelines for Success Criteria
Points:
Up to 1 point for correctly grouping the similar samples. 0 points for incorrect grouping.
Activity #8: Discrimination – Triangle or Tetrad Test – (Mayo Example)
Task: ~8 minutes
- Panelists are asked to identify the different sample, in a triangle or group the samples based on similarity, in a tetrad test.
- Mayonnaise is used in this example, but alternate products may be used.
- Enable feedback to panelists.
Resources
- Data collection devices (iPads/Tablets/Desktop).
- Depending on which discrimination test type you are using, clone either Activity #6: Triangle or Activity #7: Tetrad” test.
- Mayo (Brand A Regular and Brand A Light).
- 2 oz. cups – labelled with 3 digit codes.
Example samples:
Code
1
| Code 2
| Product
|
964
| 738
| Brand A
Regular
|
529
| 141
| Brand A Light |
Guidelines for Success Criteria
Points: Up to 1 point for correctly identifying the different sample or grouping the similar samples. 0 points for incorrect different sample identification or grouping.
Activity #9: Odour Recall
Task: ~25 minutes
- Panelists evaluate 15 odour bottles (New test: cloned, edited and recoded from Session #1, activity #4).
- Utilize the same procedure as in Session #1. Immediate feedback is still hidden from panelists.
Resources
- Data collection devices (iPads/Tablets/Desktop).
- Activity #9: “Odour Recall” test.
- Odours (refer to the odour table).
- 15 amber bottle + lids.
- Synthetic cotton balls.
- Labels (codes 1-15).
Guidelines for Success Criteria
- Compare results from Activity #4 Odour Identification to determine if learning took place.
- Create the ‘Hits and misses report’ to determine how many times a panelist was correct.
- Points: Up to 15.
Activity #10: Discrimination – What is Similar and What is Different?
Task: ~20 minutes
- Provide 2 coded samples.
- Ask panelists to evaluate and indicate what is similar and different about the samples. This can be completed on paper or using 2 Comment questions in Compusense.
- Hot dogs are used in this example, but alternate products may be used.
Resources
- Pen and paper or Data collection devices (iPads/Tablets/Desktop).
- Hot dogs (Brand A and Brand B).
- Pots and water (to cook samples).
- 2 oz. cups – labelled with A or B.
- Serve each panelist two pieces 1” (inch) in length.
Example samples:
Code
| Product
| Preparation
|
A
| Hot Dog Brand A
| Cook hot dogs in boiling water for 5 minutes and cut into 1 inch sections. (Serve warm)
|
B
| Hot Dog Brand B
| Cook hot dogs in boiling water for 5 minutes and cut into 1 inch sections. (Serve warm) |
Guidelines for Success Criteria
Observe:
- Independent work and group interactions.
- Comments: Subjective comments from entire process.
- Points: Each panelist should receive a score out of 3 on his/her answers (1 lowest and 3 highest).
Activity # 11: Independent Work, Group Work, Presenting to a Group
Task: ~20 minutes
- Ask panelists to answer the following question: “How would you describe the difference between flavour and texture?”.
- This can be completed on paper or using a Comment question in Compusense. Once panelists have completed their answer, break into small groups to share responses.
- Small groups will document ideas on flip chart paper.
- Small groups will select one individual to present to the main group.
Resources
- Data collection devices (iPads/Tablets/Desktop).
- Activity #11: Flavour vs Texture test.
- Flip Chart Paper, Markers, Tape.
Guidelines for Success Criteria
Interactions:
- Monitor independent work, group interactions and presentation to main group.
- Comments: Subjective comments from entire process.
Activity # 12: Closing and Next Steps
Closing
- Discuss panel commitment and next steps.
- Answer any panelist questions.
- Pay participants.
Next Steps
- Use the "Compusense Score Sheet for Screening Tests" (found at the bottom of this page) as an example on how to keep track of panelist’s points for the screening tests.
- Once you have recruited for your trained panel, you will need to train panelists on how to use Line Scales for evaluating samples.
- Activity #12: “Visual Proportions Training Exercise with Feedback” test.
- Activity #13: “Basic Tastes with Feedback” test.
- Once panelists have been trained, you can then train panelists on more specific products for your company.
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