All of the Following Statements Are True About External Validity

question 112

Multiple Choice

All of the following statements are true about external validity except ________.

• A) factors that threaten internal validity may also threaten external validity,the most serious of these being extraneous variables.
• B) external validity is the basic minimum that must be present in an experiment before any conclusion about treatment effects can be made
• C) threats to external validity arise when the specific experimental conditions do not realistically take into account the interactions of other relevant variables in the real world.
• D) A and C are true

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Definitions:

Volley Principle

Principle addressing limitations of the frequency theory of hearing, stating that a cluster of nerve cells can fire neural impulses in rapid succession, producing a volley of impulses.

Perceptual Set

A predisposition or readiness to perceive something in a particular way.

Selective Attention

The process by which a person focuses on one stimulus or task while ignoring other stimuli, highlighting the capacity to prioritize cognitive processing.

Absolute Threshold

The minimum amount of stimulus energy that a person can detect.