A Rat Is Placed in a Test Arena

Multiple Choice

A rat is placed in a test arena.When a two-second tone sounds, the rat must push a lever in the arena to prevent a mild footshock from being delivered.If the rat does not push the lever, the shock is delivered periodically until the lever is depressed.On early trials, the rat often fails to push the lever until the shock is delivered.These early trials are referred to as

A) escape trials.
B) punishment trials.
C) avoidance trials.
D) omission trials.