1. Purpose of Evaluation
- Reinforce learning outcomes from chemical and sensory exercises.
- Encourage critical thinking, accuracy, and collaboration among participants.
- Provide constructive feedback for improvement in analytical and sensory skills.
2. Evaluation Components
| Component | Description | Weight / Score |
|---|---|---|
| Accuracy of Chemical Analysis | Correct identification of sesquiterpenes, chromones, synthetic markers, and adulteration indicators from GC-MS/HPLC/FTIR data | 30% |
| Interpretation & Reporting | Ability to compare results to reference standards (ISO 4730, authentic chromatograms), logical conclusions, clarity of report | 25% |
| Sensory Evaluation Skills | Correct identification of top, heart, and base notes; consistency in aroma assessment | 20% |
| Teamwork & Peer Discussion | Participation in group analysis and discussion; offering constructive input | 10% |
| Professionalism & Lab Conduct | Proper lab techniques, safety, and data documentation | 10% |
| Presentation & Communication | Ability to present findings clearly to peers and instructors | 5% |
3. Peer Evaluation Guidelines
- Blind Sample Review
- Participants assess each other’s reports and sensory evaluations without knowing the sample identity.
- Evaluation Criteria
- Accuracy: Did the peer identify the major chemical markers correctly?
- Insight: Did they recognize signs of adulteration or synthetic addition?
- Sensory Assessment: Did they correctly describe top, heart, base notes and intensity?
- Presentation: Was the report or explanation clear and organized?
- Scoring Method
- Each participant scores peers on a 1–5 scale for each criterion.
- Optional: Provide written comments for constructive feedback.
4. Instructor Evaluation Guidelines
- Technical Accuracy
- Validate GC-MS, HPLC, and FTIR interpretation against reference data.
- Check for correct identification of chromones, sesquiterpenes, and adulteration markers.
- Sensory Assessment Accuracy
- Compare participant sensory scores with instructor panel consensus.
- Evaluate consistency and ability to describe aroma profile in standard terminology.
- Report Quality
- Organization, clarity, completeness of chemical + sensory report.
- Proper referencing of ISO 4730, IFRA, and CITES standards.
- Lab Technique & Safety
- Proper handling of solvents, equipment, and personal protective equipment (PPE).
- Accurate sample labeling and traceability maintenance.
5. Evaluation Forms / Templates
Peer Evaluation Form (Sample)
| Criterion | Score (1–5) | Comments |
|---|---|---|
| Accuracy of chemical analysis | ||
| Identification of adulteration markers | ||
| Sensory evaluation (top, heart, base notes) | ||
| Clarity of report / presentation | ||
| Teamwork & discussion contribution |
Instructor Evaluation Form (Sample)
| Criterion | Score (1–5) | Comments / Feedback |
|---|---|---|
| GC-MS / HPLC / FTIR interpretation | ||
| Chromone & sesquiterpene identification | ||
| Sensory analysis accuracy | ||
| Report completeness & clarity | ||
| Lab safety & professionalism |
6. Feedback & Scoring
- Combine peer and instructor scores for final evaluation.
- Provide written feedback highlighting strengths and areas for improvement.
- Optional: Include certificates of completion or skill badges for participants demonstrating high proficiency.
✅ Summary:
- Peer evaluation encourages collaborative learning and critical thinking.
- Instructor evaluation ensures technical accuracy and professional standards.
- Together, they provide a holistic assessment of chemical, sensory, and reporting skills in Oud quality assessment.