Professor Todd Decides to Test Her Hypothesis That Eating Chocolate

question 98

Multiple Choice

Professor Todd decides to test her hypothesis that eating chocolate prior to exams increases students' test scores. She randomly assigns students to two groups at the beginning of the semester. One group receives a bar of chocolate before each test, while the other group receives another type of candy. She compares their scores at the end of the year, and finds that the students who ate the chocolate scored an average of ten points higher on their exams. What is the dependent variable in this experiment?

• A)Students' test scores
• B)Chocolate bars
• C)The students themselves
• D)The professor

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Definitions:

Resource Demand

The desire and ability of a company or economy to acquire goods or services considered essential for operation.

Inherited Wealth

Wealth or assets passed down from one generation to another through inheritance, often influencing economic opportunities for individuals.

Marginal Productivity Theory

An economic theory suggesting that the addition of a unit of labor or capital within the production process will increase the output by the amount of the marginal product.

MP L

Marginal Product of Labor; the additional output resulting from employing one more unit of labor, holding other inputs constant.