A 10-Year-Old Boy Fell While Climbing a Tree

question 63

Multiple Choice

A 10-year-old boy fell while climbing a tree. He fractured the long bone of his upper arm with the bone exposed through the skin. Which terms best match the bone and the type of fracture?

• A) humerus, compound
• B) humerus, complete
• C) radius, compound
• D) radius, complete

---

Definitions:

Fixed-Interval

A reinforcement schedule in which the first reaction is reinforced after a predetermined period, resulting in a patterned series of responses.

Variable-Interval

A schedule of reinforcement where a response is rewarded after an unpredictable amount of time has passed.

Fixed-Ratio

In the context of reinforcement learning, it describes a schedule where a response is reinforced only after a specified number of responses have occurred, leading to a high, steady rate of responding.

Variable-Ratio

A reinforcement schedule in which the number of responses required for a reward varies around an average, making the reinforcement unpredictable and typically leading to high and stable response rates.