In the Use of Randomized Controlled Designs, as Internal Validity

question 18

Multiple Choice

In the use of randomized controlled designs, as internal validity increases,

• A) external validity increases.
• B) external validity decreases.
• C) efficacy decreases.
• D) effectiveness increases.

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Definitions:

Stomach

A hollow organ in the gastrointestinal tract that secretes acid and enzymes for food digestion.

Liver

A large, vital organ in the body that performs numerous functions including detoxification, protein synthesis, and the production of biochemicals necessary for digestion.

Liver

A large, vital organ in vertebrates that performs a wide range of functions, including detoxification, protein synthesis, and production of biochemicals necessary for digestion.

Lobes

Divisions or sections of an organ, separated by fissures or boundaries, often found in the brain, lungs, and liver.