- 20-80 aged, general public, metropolitan St. Louis area, USA, 197?
- N = 120
- Non Response:
- Interview: face-to-face
- Authors's label
- VOT (Hooper)
- Our Classification
- Visual Organization Test (Hooper).
Test of 30 drawings of simple objects.Each drawing is segmented into parts which are arranged into a jigsaw puzzle. The job is organize the parts in the mind and to name the drawings.