A

• Anatomical theatres‎ (6 P)

C

• Crime witnesses‎ (5 C, 26 P)

D

• Observation decks‎ (14 P)
• Discovered cryopreserved organisms‎ (2 P)
• Discoveries‎ (10 C, 5 P)

E

• Earth observation‎ (6 C, 11 P)
• Empiricism‎ (7 C, 41 P)

H

• Observation hobbies‎ (4 C, 24 P)

J

• Journalism‎ (29 C, 95 P)

L

• Lists of inventions or discoveries‎ (1 C, 87 P)

M

• Medical diagnosis‎ (33 C, 62 P)

O

• Observational study‎ (1 C, 23 P)

P

• Phenomena‎ (12 C, 16 P)
• Physical examination‎ (1 C, 70 P)

S

• Scientific observation‎ (3 C, 17 P)

T

• Observation towers‎ (2 C, 55 P)

• Observation

A

• Audience

D

• Discovery (observation)

E

• Empirical observation

I

• Instructional rounds
• Introspection

L

• Looking
• The Lost Continent: Travels in Small-Town America

M

• El monstruo (audience)

O

• Observable variable
• Observation car
• Observational comedy
• Observationalism

P

• Phenomenon
• Planetarium
• Problem of the speckled hen
• Psychoanalytic infant observation

S

• Science
• Social facilitation

T

• Testability
• Theory-ladenness

V

• Von Neumann–Wigner interpretation