A Biologist Wants to Determine the Effect of a Diet

question 3

Multiple Choice

A biologist wants to determine the effect of a diet supplement using white rats. A shipment of 20 rats is obtained from a biological supply firm. They arrive in a single box. The biologist reaches into the box and the first ten rats caught are assigned to the control group and the remaining rats are assigned to the experimental group receiving the supplement. Select the potential source of confounding.

• A) Method of formation of the control and treatment groups
• B) Experimenter effect
• C) Placebo effect
• D) The study is essentially free from potential sources of confounding.

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Definitions:

McGrath

Could refer to Joseph Edward McGrath, a social psychologist known for his work on small groups and team dynamics.

Monitoring/Internal

The process of continuously checking, tracking, or verifying activities or systems for compliance with standards or plans, often referenced in the context of internal controls or supervision.

External Leadership Actions

Activities and initiatives undertaken by leaders outside of their immediate team or organization, influencing wider stakeholders and environments.

Environmental

Relating to the natural world and the impact of human activity on its condition.