Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology

Crocker and Henderson invented a system of odor classification which has four basic odors which they termed the odor square:

• Fragrant
• Acid
• Burnt
• Caprylic

They marketed the Crocker-Henderson Odor Classification Set as an educational tool. It contained vials of odorants for comparison, each labled with the basic odor and its position on a nine point scale (odors are rated 0 - 8 ).

However it did not reflect the psychophysical data as it became available and the Heening odor system and Zwaardemaker smell system have taken prominence.

See alsoEdit

• Classification of odors

ReferencesEdit