Question

henry is observing beetles for his biology project. they return to their nest at unpredictable intervals all day long, so henry keeps a close watch all day. which reinforcement schedule is this?

variable interval
variable ratio
fixed interval
fixed ratio

Explanation:

Analyze the reinforcement schedule type

Using the Schedules of Reinforcement knowledge point

• Interval vs. Ratio: The reinforcement (seeing a beetle return) is based on the passage of time rather than the number of behaviors Henry performs. This makes it an interval schedule.
• Variable vs. Fixed: The beetles return at "unpredictable intervals," meaning the amount of time that must pass before a beetle appears changes and is not constant. This makes it a variable schedule.
• Conclusion: A schedule where reinforcement occurs after unpredictable, varying time intervals is a variable interval schedule.

Answer:

• variable interval (Correct answer)
• variable ratio
• fixed interval
• fixed ratio