If "History" or Some Other Factor Threatens the Internal Validity

question 60

Multiple Choice

If "history" or some other factor threatens the internal validity of a research design, this means that the possible effects of an extraneous variable are confounded with the

• A) effects of the independent variable.
• B) effects of random assignment.
• C) measurement of the dependent variable.
• D) constancy of experimental conditions.

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Definitions:

Vasa Recta

A series of straight capillaries in the kidney that serve as an extension of the loop of Henle, playing a critical role in the concentration of urine.

Nephron Loop

A U-shaped tube in the nephron of the kidney that plays a crucial role in concentrating urine and conserving water.

Proximal Tubule

A major part of the nephron in the kidney, involved in the reabsorption of water, ions, and nutrients from the filtrate and their return to the bloodstream.

Urinalysis Test Strip

A diagnostic tool used to detect and measure various compounds in urine, such as glucose or proteins.