When Evaluating Drug Safety,the Dosage That Causes 50 Percent of Subjects

question 11

Multiple Choice

When evaluating drug safety,the dosage that causes 50 percent of subjects to exhibit a specific adverse effect is known as the

• A) median therapeutic dose
• B) median toxic dose
• C) therapeutic index
• D) ceiling effect
• E) threshold dose

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Definitions:

Variable Ratio

A reinforcement schedule in which a response is rewarded after a random number of responses, leading to a high resistance to extinction.

Fixed Interval

A schedule of reinforcement where the first response is rewarded only after a specified amount of time has elapsed, leading to a pattern of responses.

Variable Interval

Variable interval refers to a type of reinforcement schedule in operant conditioning where a response is rewarded after an unpredictable amount of time has passed, leading to a steady and resistant response rate.

Variable Ratio

A schedule of reinforcement where a response is reinforced after an unpredictable number of responses, making it highly resistant to extinction.