Drug Use Has Existed for Centuries

question 21

Multiple Choice

Drug use has existed for centuries. Ancient writings indicate that _____, or the "plant of joy," was used 5,000 years ago.

• A) marijuana
• B) the opium poppy
• C) coca leaves
• D) mushrooms

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Definitions:

Control Groups

Groups in experimental research that do not receive the treatment being tested, allowing for comparison with the experimental group.

Experimental Effects

Refers to the impact that the process of conducting an experiment can have on the subjects or outcomes, often leading to changes not directly related to the variables being studied.

Correlation Coefficient

A quantifiable metric demonstrating the degree to which several variables co-vary.

Important Factors

Elements or conditions that are significant or crucial in achieving an outcome or understanding a situation.