Which of the Following Threats to Internal Validity Is Controlled

question 25

Multiple Choice

Which of the following threats to internal validity is controlled in the nonequivalent control group design?

• A) testing.
• B) additive effect of selection and testing.
• C) additive effect of selection and history.
• D) differential regression.

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Definitions:

Lithotomy

A medical procedure or position used during childbirth or certain surgeries, where the patient lies on their back with the hips and knees flexed and the thighs apart.

Stirrups

Support structures or loops for holding the feet of a rider, attached to the saddle in horse riding, or devices used in medical examinations to support patient's legs.

Emotional Preparation

The process of readying one's emotional state or mindset to face a particular situation or task.

Physical Examination

A thorough assessment of a patient's body by a healthcare professional to detect any signs of disease or abnormalities.