Various reinforcement schedules have been shown to have different effects on the rate and retention of learning. In your own words, explain the meaning of fixed interval (FI), variable interval (VI), fixed ratio (FR), and variable ratio (VR) reinforcement schedules. What are the advantages and disadvantages of each of the four types of reinforcement schedules? Give an example from your own experience when one of the four types of reinforcement schedules was used. What were the results? Your initial post should be a minimum of 250-300 words. You must use at least one scholarly, peer-reviewed source that was published within the past five years and is cited according to APA guidelines as outlined in the Ashford Writing Center.