What Is the Primary Difference Between an Observational and an Experimental

question 12

Multiple Choice

What is the primary difference between an observational and an experimental study?

• A) the former does not do random assignment
• B) the latter does not define a hypothesis
• C) the former does not have groups in the study
• D) the latter is done for clinical trials

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Definitions:

Brain's Reward Pathway

A neural pathway in the brain that releases dopamine in response to experiences perceived as rewarding, motivating repetition of those behaviors.

Tolerance

The need to take increasing amounts of a drug to get the same effect.

Marijuana

A psychoactive drug from the Cannabis plant used for medical or recreational purposes.

Dopamine Dependence

A condition where an individual's normal neurobiological reward system becomes excessively reliant on activities or substances that significantly increase dopamine levels.