A Variable That Inadvertently Causes an Experimental Result Is

question 25

Multiple Choice

A variable that inadvertently causes an experimental result is:

• A) confounded with the dependent variable.
• B) confounded with the independent variable.
• C) confounded with the control variables.
• D) unlikely to be important in experiments.

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Definitions:

Hemoglobin

A protein in red blood cells that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.

Sickle Cell Anemia

A hereditary blood disorder characterized by abnormal hemoglobin, resulting in some red blood cells assuming an abnormal sickle shape.

B-Thalassemia Major

A severe blood disorder caused by a genetic mutation, leading to reduced production of hemoglobin and potentially severe anemia.

Hemophilia

A medical condition, usually inherited, in which the ability of the blood to clot is severely reduced, causing the sufferer to bleed severely from even a slight injury.