- A-not-A test
- absolute judgment
- acceptabilityunacceptability
- acuity
- adaptation
- Affective test
- Aftertaste
- After effects
- After feel
- Aguesia
- Alternative forced choice
- Anchoring point
- Anosmia
- Antagonism
- assessor
- Flavor Flavour
- Hyperosmia
- Hyposmia
- Monadic Sequential
- position effect
- Synesthesia
