I Selected My 7^th Grade Classmates as the Control Group

question 51

Multiple Choice

I selected my 7^th grade classmates as the control group and a group of 7^th graders from another school as the treatment group. What bias has a good chance of impacting this study?

• A) bias due to history
• B) the posttest-only control-group design
• C) bias due to maturation
• D) biased selection

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Definitions:

High School Seniors

Students in their final year of high school, typically focusing on completing graduation requirements and preparing for post-secondary education or careers.

Great Risk

A situation or action that involves a high likelihood of experiencing significant or severe negative outcomes.

Marijuana Use

The act of consuming marijuana, a psychoactive drug from the Cannabis plant, which can have various effects including altered states of mind and mood.

Mild Hallucinogen

A substance that induces slight alterations in perception, thought, or mood without causing complete disconnection from reality.