What Does Randomly Assigning Subjects to Different Groups Ultimately Do

question 150

Multiple Choice

What does randomly assigning subjects to different groups ultimately do?

• A) it makes the selection of subjects less time consuming
• B) it prevents subjects from knowing what group they are in
• C) it controls any factors that might influence the results of the study
• D) it ensures that there is an equal number of males and females in each group

---

Definitions:

Fixed Costs

Expenses that do not change in total volume with changes in the level of business activity, such as rent or salaries.

Contribution Margin Ratio

A financial ratio that measures how much of each sale is available to cover fixed costs after variable costs have been paid.

Variable Costs

Charges that fluctuate in relation to the volume of business activities or production levels.

CVP Analysis

Cost-Volume-Profit Analysis, a tool that helps understand the relationship between costs, volume of sales, and profit.