Which of the Following Is a Threat to Internal Validity

question 44

Multiple Choice

Which of the following is a threat to internal validity found in within-groups designs but not in independent-groups designs?

• A)Selection effects
• B)Design confounds
• C)Demand characteristics
• D)Practice effects

---

Definitions:

Inferior to Hips

Refers to a position or structure located below the level of the hips in the human body.

Waist

The part of the human body below the ribs and above the hips, often used as a measure of a person's build or for fitting clothes.

Histology

The study of the microscopic structure of tissues.

Tissues

Groups of cells that perform a similar function and are the building blocks of organs and structures in the body.