The Dean of Students Mailed a Survey to a Total

question 123

Multiple Choice

The Dean of Students mailed a survey to a total of 400 students. The sample included 100 students randomly selected from each of the freshman, sophomore, junior, and senior classes on campus last term. What sampling method was used?

• A) cluster sample
• B) simple random sample
• C) stratified sample
• D) systematic sample

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Definitions:

Attentional Focus

The cognitive process of concentrating on one aspect of the environment while ignoring others.

Executive Functioning

A set of mental skills coordinated in the brain, including memory, flexible thinking, and self-control, that helps manage time, pay attention, and plan actions.

Risk of Death

The probability or chance that an individual will die from a disease or other circumstances within a certain period of time.

Proinflammatory Cytokines

Molecules released by the immune system that promote inflammation as part of the body's response to infection or injury.