Confounding Is a Threat to ________ Validity

question 58

Multiple Choice

Confounding is a threat to ________ validity

• A) internal
• B) external
• C) construct
• D) statistical

---

Definitions:

Lung Volume

The amount of air that the lungs can hold, important for assessing lung health and function.

Electrodes

Conductive materials or devices that are used to establish electrical contact with a nonmetallic part of a circuit, often found in batteries or medical devices.

Leads

In the context of electrocardiography, it refers to the specific configurations of electrodes on the body to record the electrical activity of the heart from different angles.

Electrical Activity

The movement of electrical charges or currents, often referring to such phenomena in the nervous system or the heart.