This Threat of Internal Validity Comes from Changes in Measuring

question 115

Multiple Choice

This threat of internal validity comes from changes in measuring instruments or observers.

• A) Testing
• B) Maturation
• C) Subject selection
• D) History
• E) None of the above

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Definitions:

Fixed Ratio Schedule

A reinforcement schedule in operant conditioning where a response is reinforced only after a specified number of responses, promoting a high and steady rate of responding.

Operant Conditioning

A method of learning where the intensity of a behavior is altered through rewards or penalties.

Extinction

The process whereby a conditioned response decreases in frequency and eventually disappears as a result of the conditioned stimulus being presented without the unconditioned stimulus.

Reinforcement

A stimulus or event that increases the likelihood of a behavior being repeated, it can be positive (adding) or negative (removing).