Eighteen Obese Volunteers Weighed Themselves Before and After a Two-Day

question 61

Multiple Choice

Eighteen obese volunteers weighed themselves before and after a two-day fast.The appropriate design for testing the significance of the difference between the means is

• A)related-samples t-test.
• B)independent-samples t-test.
• C)one-sample t-test.
• D)z-test.

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Definitions:

Double-blind Procedure

A research or testing method in which neither the subjects nor the experimenters know which subjects are in the control or experimental groups, to eliminate bias.

Experimental Treatment

A novel therapeutic approach or intervention being tested for its effectiveness, often within the context of a clinical trial.

Dependent Variable

The outcome factor; the variable that may change in response to manipulations of the independent variable.

Independent Variable

In experimental research, the variable that is manipulated or changed to observe its effect on a dependent variable.