Galef (1990) demonstrated that an "observer" rat would show a preference for a novel food if the novel food had also been eaten by a "demonstrator" rat. It was clear that this happened because of "stimulus enhancement," however, rather than by means of observation and imitation because the demonstrator rat was
A) anesthetized.
B) dead.
C) in the cage with the observer rat.
D) its mother.

Question

Quizplus · Accepted Answer

The demonstrator rat was anesthetized, meaning it could not perform actions for the observer rat to imitate, indicating that the observer's preference was due to stimulus enhancement rather than imitation.

Galef (1990) Demonstrated That an "Observer" Rat Would Show a Preference