Which of the Following Increases External Validity

question 40

Multiple Choice

Which of the following increases external validity

• A) consistent measurement
• B) diverse participants
• C) careful study design
• D) strong ethical guidelines

---

Definitions:

Perfect Competition

describes a theoretical market structure characterized by many buyers and sellers, homogenous products, and free entry and exit, leading to optimal distribution of goods and services.

Barriers to Entry

Obstacles that make it difficult for new competitors to enter a market, such as high startup costs, strict regulations, or established brand loyalty.

Economic Profits

The excess of total revenues over total costs, including both explicit costs and opportunity costs, indicating a return beyond the normal profit level.

Accounting Profits

The net earnings of a company as calculated by subtracting total expenses from total revenues, according to standard accounting practices.