The basic message from the study of reinforcement schedules is that it is not just the event alone that predicts your behavior but it is the requirements to obtain the event. Therefore whether the subject responds fast or slow, in spurts or in steady fashion depends more on the schedule than the event.  (Note the parallel to the Empirical Law of Effect.  It is not the event alone, it is the event plus situation.) 

Below I ask you to imagine/identify situations in which events are obtained by different rules/contingencies and to predict the pattern of behavior to be expected.  You could be lazy and say it is on the web, so I don't need to think and will just copy.  Here is SHOCKING news.  Much of the stuff on the web is wrong.  (Are we talking about advice that negative reinforcement and positive punishment produce the same effects?)  I have seen the exact same situation described as a VI, VR, and FI schedule.  You could be memorizing the exact wrong answer, which will not help your test grade. Think the classification through using the rules from class and you are good.

1. Imagine (or recognize or remember) a situation to which you (or a friend) have been exposed to that you would call a FR schedule? Why do you say that?  (What is the rule?)  What is the pattern of behavior that you would expect to develop and see that would confirm your conclusion?  Be specific about the pattern of behavior.  What do we do to diagnose the pattern on a cumulative record?

2. Imagine (or recognize or remember) a situation to which you (or a friend) have been exposed to that you would call a VR schedule? Why do you say that?  (What is the rule?) What is the pattern of behavior that you would expect to develop and see that would confirm your conclusion?  Be specific about the pattern of behavior.  What do we do to diagnose the pattern on a cumulative record?  (An aside.  It is a powerful and nasty schedule which is connected to a lot of addictive behavior.)

3. Imagine (or recognize or remember) a situation to which you (or a friend) have been exposed to that you would call a FI schedule? Why do you say that?  (What is the rule?) What is the pattern of behavior that you would expect to develop and see that would confirm your conclusion.  Be specific about the pattern of behavior.  What do we do to diagnose the pattern on a cumulative record?  (An aside.  Does this sound like a standard semester?)

4. Imagine (or recognize or remember) a situation to which you (or a friend) have been exposed to that you would call a VI schedule? Why do you say that?  (What is the rule?) What is the pattern of behavior that you would expect to develop and see that would confirm your conclusion.  Be specific about the pattern of behavior.  What do we do to diagnose the pattern on a cumulative record?  (An aside.  Why might we call this the Boone schedule of life?)