To Test the Effects of Eating on Learning, Professor Lee

question 53

Multiple Choice

To test the effects of eating on learning, Professor Lee permits her morning class to bring snacks to class but forbids her afternoon class from bringing snacks. To measure performance, she counts the number of "intelligent questions" asked by students in each class, and reports getting more such questions in the morning class. What are two serious flaws in this experiment?

• A) too many dependent variables and lack of an independent variable
• B) lack of blind observations and lack of a dependent variable
• C) lack of random assignment and lack of blind observations
• D) demand characteristics and presence of too many independent variables

---

Definitions:

Utility Maximization

A theory in economics suggesting that individuals or households seek to allocate their resources in a manner that maximizes their overall satisfaction or utility.

Marginal Costs

The cost added by producing one additional unit of a product, reflecting the variable costs involved in production.

Economic Rationality

The assumption that individuals make decisions based on maximizing utility or profit within constraints, following a logical and efficient approach.

Marginal Utility

The change in satisfaction or utility that a consumer experiences from consuming an additional unit of a good or service.