The One-Group Pretest-Posttest Design May Be Symbolized as O1 X2

question 65

Multiple Choice

The one-group pretest-posttest design may be symbolized as O1 X2 O2.In this design,a group of test units is measured ________.

• A) once
• B) twice
• C) not at all
• D) none of the above

---

Definitions:

Perfectly Competitive

A market structure characterized by a large number of small firms, identical products, and free entry and exit, leading to price-taking behavior.

Weekly Wage Rate

The amount of money earned by an employee for work done in one week.

Marginal Cost

The cost added by producing one additional unit of a product or service.

Marginal Revenue

The increase in total revenue resulting from the sale of one additional unit of a product or service.