- (B) The school librarian’s system of giving students a prize for every five books they read uses a
fixed ratio reinforcement schedule. The schedule is fixed (as opposed to variable) because
students are rewarded for every five books they read—a fixed or constant number. The schedule is
a ratio (as opposed to interval) schedule because what controls the reinforcement is the number of
responses the person makes and not the passage of time.
marvins-underground-k-12
(Marvins-Underground-K-12)
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