When Estimating Body Composition Using Bioelectrical Impedance,dehydration Caused by Insufficient

question 25

Multiple Choice

When estimating body composition using bioelectrical impedance,dehydration caused by insufficient water intake,excessive perspiration,heavy exercise,or alcohol use can result in ________.

• A)an overestimation of fat mass
• B)an underestimation of fat mass
• C)no change in the estimate of fat mass
• D)None of the choices are correct.

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Definitions:

Volunteer Bias

The tendency for volunteers, such as in research studies, to differ from the general population in significant ways, potentially skewing results.

Random Sampling

A method of selecting a sample from a population in which every individual has an equal chance of being chosen.

Correlation Coefficient

A number between −1.00 and +1.00 that indicates the direction (negative or positive) and extent (from none to perfect) of the relationship between two variables.

Independent Variable

In research, this is the condition or factor that is intentionally changed to observe its impact on an outcome.