When an Experiment Has Shown That an Independent Variable Is

question 133

Multiple Choice

When an experiment has shown that an independent variable is a cause of a phenomenon, what is the most reasonable conclusion one should draw?

• A) The hypothesis has been proven correct.
• B) The scientific question has been answered once and for all.
• C) There is evidence that supports the hypothesis, though multiple experiments and methods are still needed.
• D) There is some evidence for an association, but one should be cautious about drawing causal conclusions.

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Definitions:

Leptin

A hormone produced by fat cells that helps to regulate energy balance by inhibiting hunger.

Cholecystokinin

A hormone released by the small intestine that stimulates the digestion of fat and protein, and also acts as a satiety signal to the brain.

Fat Cells

Cells that specialize in storing energy as fat, known scientifically as adipocytes, playing a significant role in metabolism and energy balance.

Serotonin

Serotonin is a neurotransmitter that plays a key role in regulating mood, appetite, sleep, memory, and other bodily functions.