Without Internal Validity, an Experimenter Cannot

question 45

Multiple Choice

Without internal validity, an experimenter cannot

• A) control extraneous variables.
• B) manipulate the independent variables).
• C) measure the dependent variable.
• D) make statements about cause and effect.

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Definitions:

Facial Expression

Movements of the facial muscles that communicate emotions or reactions and are a significant aspect of non-verbal communication.

Emotional Reactions

The spontaneous response of the emotional system to an event, thought, or memory, varying greatly in intensity and type.

Schachter And Singer Theory

A theory of emotion which suggests that physiological arousal occurs first, followed by the identification of the reason for this arousal which then leads us to experience and label the emotion.

James-Lange Theory

A hypothesis proposing that emotions are the outcome of physical responses to occurrences.