In Order to Test the Effectiveness of a Drug Called

question 111

Multiple Choice

In order to test the effectiveness of a drug called XZR designed to reduce cholesterol levels,9 heart patients' cholesterol levels are measured before they are given the drug.The same 9 patients use XZR for two continuous months.After two months of continuous use,the 9 patients' cholesterol levels are measured again.The comparison of cholesterol levels before versus after the administration of the drug is an example of testing the difference between two ____________.

• A)Samples of equal variances
• B)Independent samples
• C)Paired samples
• D)Samples of unequal variances

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Definitions:

Conditions

General states or situations in which something occurs or has an effect.

Independent Variable

In studies involving experimentation and statistics, it's the variable that is altered or controlled to see its impact on a dependent variable.

Dependent Variable

In an experimental setting, the variable that is tested and measured, often considered the outcome or effect that is influenced by another variable.

Interaction

The mutual or reciprocal action or influence between objects, substances, or people.