A Double-Blind Research Design Is One in Which

question 8

Multiple Choice

A double-blind research design is one in which

• A) the subject does not know which treatment he/she has been administered.
• B) both the subject and the investigator know what treatment had been administered.
• C) neither the subject nor the investigator know what treatment had been administered.
• D) only the investigator knows what treatment has been administered.

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Definitions:

Addictive Drugs

Drugs that produce a biological or psychological dependence in users, leading to increasingly powerful cravings for them.

Biological Dependence

A state in which an organism requires a substance to function normally, with cessation causing physical symptoms of withdrawal.

Psychological Dependence

A form of dependence characterized by a perceived need to use a substance for its mental effects, often leading to cravings and misuse.

Middle Adulthood

A stage of life typically characterized as occuring between the ages of 40 and 65, marked by personal, professional, and familial achievements and challenges.