What's the Difference Between an Experiment and a Correlational Study

question 26

Multiple Choice

What's the difference between an experiment and a correlational study?

• A) Psychologists manipulate and measure variables in experiments but only measure variables in correlational studies.
• B) Psychologists use random selection in experiments and random assignment in correlational studies.
• C) Psychologists pay participants in experiments but do not pay participants in correlational studies.
• D) Psychologists must secure IRB approval for experiments but not correlational studies.

Acknowledge the sociological theories explaining drug use and addiction.

Identify social factors and personal circumstances that promote or discourage drug use.

Understand the reasons behind unsafe needle use among IV drug users and its relation to HIV/AIDS risk.

Identify misconceptions and accurate statements regarding the social profile of illegal drug users.

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Definitions:

Scleritis

An inflammatory disease affecting the sclera, the white outer layer of the eye, which can cause severe pain and potentially impair vision.

Trichiasis

A condition where eyelashes grow abnormally and irritate the eyes.

Xerophthalmia

A medical condition characterized by dry eyes due to a lack of vitamin A, which can lead to vision problems.

Orthoptics

A branch of ophthalmology dealing with the diagnosis and treatment of defective vision and the management of eye movement disorders.