Which of the following is a difference between variable interval reinforcement schedules and variable ratio reinforcement schedules? a. Variable interval reinforcement schedules are intermittent reinforcement schedules that are based on time, whereas variable ratio reinforcement schedules are intermittent reinforcement schedules that are based on behaviors. b. Unlike variable interval reinforcement schedules, with variable ratio reinforcement schedules, consequences follow a behavior only after a fixed time has elapsed. c. Variable interval reinforcement schedules are a type of continuous reinforcement schedules, whereas variable ratio reinforcement schedules are a type of intermittent reinforcement schedules. d. Unlike variable interval reinforcement schedules, with variable ratio reinforcement schedules, consequences are delivered following a specific number of behaviors.

a. Variable interval reinforcement schedules are intermittent reinforcement schedules that are based on time, whereas variable ratio reinforcement schedules are intermittent reinforcement schedules that are based on behaviors

Explanation:

Variable here means number of responses/behaviours or amount of time between reinforcements vary or change. Interval means schedule works with time or is based on time between reinforcements hence the name variable interval reinforcement. Ratio here means the schedule is based on the number of responses between reinforcements hence the name variable ratio reinforcement schedule. Both reinforcement occur randomly or inconsistently and none is fixed or specified, this is why the variable is there, but they now differ by "time" and "behavior"

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