A Student Says, "The Problem with Single-Subject Experiments Is That

question 64

Multiple Choice

A student says, "The problem with single-subject experiments is that there is no control group, so you don't know if the treatment is effective." The BEST reply is:

• A) "You're absolutely right."
• B) "If you use a reversal design, then participants serve as their own controls."
• C) "Researchers routinely include control participants along with the actual participants."
• D) "You don't need controls; single-subject experiments are always double-blind."

---

Definitions:

Annual Fixed Costs

The total of all business expenses that are consistent and unchanged throughout the fiscal year, regardless of production levels or sales volume.

Contribution Margin

The contribution margin represents the portion of sales revenue that is not consumed by variable costs and contributes to covering the company's fixed costs.

Depreciation Expense

A technique in accounting for distributing the expense of a physical asset across its usable life.

Fixed Costs

Expenses that do not change with the level of activity or output over a short period, such as rent, salaries, and insurance premiums.