Which of the Following Would Not Be a Potential Threat

question 44

Multiple Choice

Which of the following would not be a potential threat to the internal validity of a static-group comparison design?

• A) testing
• B) history
• C) selection
• D) differential attrition

---

Definitions:

Colonoscopy

A medical procedure using a camera to examine the interior lining of the colon and rectum.

Proctoscopy

A medical procedure where a special instrument, called a proctoscope, is used to examine the anal cavity, rectum, or sigmoid colon.

Uterus

A major female hormone-responsive reproductive sex organ of most mammals, including humans, responsible for housing and nurturing the fetus.

Myosarcoma

A malignant tumor derived from muscle tissue, often aggressive and requiring early treatment.