Suppose During an Experiment,a Researcher Used Several Observers to Record

question 58

Multiple Choice

Suppose during an experiment,a researcher used several observers to record the results.The results of the experiment were perplexing to the researcher.In such a case one might expect ___________ to have occurred,distorting the results of the experiment.

• A)maturation
• B)history
• C)instrument variation
• D)mortality
• E)selection bias

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Definitions:

Erectile Dysfunction

A medical condition characterized by the inability to achieve or maintain an erection sufficient for satisfactory sexual performance.

Aldosterone

A hormone produced by the adrenal glands that helps regulate blood pressure by controlling sodium and potassium levels.

Antidiuretic Hormone

A hormone that helps to control the balance of fluids in the body by reducing the amount of water excreted by the kidneys.

Pituitary Gland Hormones

Hormones secreted by the pituitary gland, an endocrine gland at the base of the brain, affecting various bodily functions.