Some Threats to Internal Validity Are Related to Time and Other

question 60

Multiple Choice

Some threats to internal validity are related to time and other threats are related to differences between groups.What is a threat related to time?

• A)​history effects
• B)​assignment bias
• C)selection bias
• D)​differential attrition

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Definitions:

Homeostasis

The process by which living organisms regulate their internal environment to maintain a stable, optimal condition despite external changes.

Need

A requirement for something because it is essential or very important.

Drive-reduction Theory

A psychological motivation theory suggesting that the act of fulfilling basic physiological needs reduces drive and generates a state of psychological equilibrium or satisfaction.

Famine

A severe shortage of food resulting in widespread hunger, malnutrition, and increased mortality.