NSCI 222 Final Exam Questions & Answers 2024/2025
What is characteristic of a fixed interval schedule on a cumulative response graph? - ANSWERSScalloping
What is characteristic of a fixed ratio schedule on a cumulative response graph? - ANSWERSPost-reinforcement pauses (flat lines)
What...
What is characteristic of a fixed interval schedule on a cumulative response graph? - ANSWERSScalloping
What is characteristic of a fixed ratio schedule on a cumulative response graph? - ANSWERSPost-
reinforcement pauses (flat lines)
What is the most effective reinforcement schedule? - ANSWERSVariable ratio
3 theories for post-reinforcement pauses (fixed ratio) - ANSWERSFatigue (not highly supported),
escaping, pausing (to work for other reinforcers-- sleep, eat or study)
Example of variable ratio schedule - ANSWERSGetting a hit every variable amount of at-bats; varies
around the batting average
Example of a fixed interval schedule - ANSWERSBehavior: checking the mailbox; don't get rewarded until
checking after 3pm (another example is waiting a week for the Tuesday weekly dinner special at a
restaurant)
Example of a variable interval schedule - ANSWERSChecking your phone for notifications: only get
rewarded at a variable time interval when someone texts you
Example of a variable duration schedule - ANSWERSGetting rewarded after waiting in line for a certain
amount of time for a ride
Example of a fixed time schedule - ANSWERSReinforcement occurs after a set period of time regardless
of behavior; ex: getting coffee after a 9am class regardless of your behavior
, Example of a variable time schedule - ANSWERSUNC basketball winning the NCAA championship in
random years; how superstitions develop
Characteristics of progressive schedules - ANSWERSReinforcement occurs after an increasingly bigger
ratio/interval/duration until behavior drops off (break point); makes behavior more resistant to
extinction
Multiple schedule characteristics - ANSWERSTwo or more simple schedules where particular schedule is
signaled
Mixed schedule characteristics - ANSWERStwo or more simple schedules where change in schedule is
UNSIGNALED
Chain schedule characteristics - ANSWERSTwo or more simple schedules where ONLY LAST SCHEDULE IS
REINFORCED; particular schedule in effect is signaled
Whats the difference between an FR30 and a chain for 3 FR30s? - ANSWERSIn an FR30, there is a reward
after every 30 presses; in a chain FR30 there is a reward after 90 presses (still see post-reinforcement
pause after each 30 presses because you still get signaled)
What is a tandem schedule? - ANSWERSTwo or more simple schedules where only the last schedule in
the chain is reinforced; particular schedule in effect is unsignaled (difficult for animal to figure out)
What compound schedules have reinforcement throughout? - ANSWERSMultiple and mixed
What compound schedules have reinforcement only at the completion of all schedules? -
ANSWERSChain schedule and tandem schedule
Which compound schedules have a signal that indicates the change in schedule? - ANSWERSMultiple
schedule and chain schedule
What is the partial reinforcement effect (PRE)? - ANSWERSintermittent schedules tend to be more
resistant to extinction; the "thinner" the schedule, the more responses during extinction
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