In a Within-Subjects Study That Extends Over a Relatively Long

question 17

Multiple Choice

In a within-subjects study that extends over a relatively long time, it is possible that there will be systematic changes in the participants' skills or knowledge during the time of the study. When these changes influence the participants' scores, causing scores at the end of the study to be different from scores at the beginning, the effect is called ____.

• A) history effects
• B) instrumentation
• C) maturation
• D) regression toward the mean

---

Definitions:

Nonperformance

A failure to act or fulfill a duty, obligation, or contractual agreement.

Revocation

In contract law, the withdrawal of an offer by an offeror. Unless an offer is irrevocable, it can be revoked at any time prior to acceptance without liability.

Premium Price

The higher price charged for a product or service that is perceived to have greater value compared to alternatives.

Agency Relationship

A legal relationship in which one party (the agent) is authorized to act on behalf of another (the principal) in business transactions.