An Experimenter Was Interested in the Effect of Caffeine on a Performance

question 26

Multiple Choice

An experimenter was interested in the effect of caffeine on a performance test.Three equivalent groups consumed high, moderate, or low amounts of caffeine before taking the performance test.This experiment had

• A) three independent variables.
• B) one independent variable with three levels.
• C) three dependent variables.
• D) one dependent variable with three levels.

---

Definitions:

Fixed-Term Contract

An employment agreement for a specific period of time, after which it automatically terminates unless renewed.

Partnership Agreement

A legal document that outlines the terms and conditions under which a partnership operates.

Tree Surgeons

Professionals specializing in the care and maintenance of trees, including pruning, diagnosing disease, and ensuring tree health.

Considerable Damage

Significant harm or destruction to property, health, or well-being that is not easily or quickly rectified.