Subject Loss (Attrition)poses a Problem for a Random Groups Design

question 51

Multiple Choice

Subject loss (attrition) poses a problem for a random groups design because

• A)extraneous variables are more likely to affect subjects who drop out.
• B)participants may change their natural group designation.
• C)participants may no longer be blind to the manipulation.
• D)group equivalence established at the beginning of the experiment may be lost.

---

Definitions:

Depreciation

The diminishing value of an asset over periods, often as a result of deterioration or becoming obsolete.

Inventory Investment

The purchase of goods and materials that are not currently needed for production but are held for future use, contributing to a company’s assets.

Inventory

The complete list of items such as property, goods in stock, or the contents of a building.

Disposable Income

Disposable income is the amount of money individuals or households have available for spending and saving after income taxes have been accounted for.