A Psychologist Is Conducting an Experiment to Test the Influence

question 77

Multiple Choice

A psychologist is conducting an experiment to test the influence that coloured backgrounds of pages in textbooks have on the amount of information retained by students. She has a short text printed in three versions, each with a different colour of background. After students in three separate groups read their assigned text, she tests the students' retention. In this study, the retention of what the students read is the

• A) dependent variable
• B) random variable.
• C) independent variable.
• D) control variable.

---

Definitions:

Altruism

The principle or practice of concern for the welfare of others, often at the expense of one's self-interest.

Reproductive Success

The extent to which an organism passes its genes to the next generation, often measured by the number of offspring that survive to reproduce.

Lever

A rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.

Food Pellet

A compressed unit of food, often used in animal feeding, which is designed for easy storage, handling, and consumption.