In one variant of the Skinner box, a pigeon earns food by A) ...

[kodithompson]

In one variant of the Skinner box, a pigeon earns food by
 
  A) flapping its wings.
  B) turning circles.
  C) pecking a response key.
  D) pressing a lever.

Question 2

Skinner's operant conditioning procedure became known as _____ procedure because _____.
 
  A) an instrumental; the consequences are free
  B) the free operant; the animal is free to respond at any rate
  C) an instrumental; the animal is free to enter or leave the chamber
  D) the adjunctive; the experimenter is free to observe the rat's behavior

[yotaSR5]

Answer to Question 1

C

Answer to Question 2

B