Which of the Following Must Be True

question 7

Multiple Choice

Which of the following must be true?

• A)when a muscle shortens,it is concentrically contracting
• B)when a muscle lengthens,it is eccentrically contracting
• C)when a muscle lengthens,it is concentrically contracting
• D)none of the above

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Definitions:

Independent Variable

In an experiment, this is the element that is intentionally varied or adjusted by the scientist to determine its influence on the dependent variable.

Dependent Variable

The variable in an experiment that is expected to change as a result of manipulations of the independent variable.

Inferential Statistic

Statistical methods that allow researchers to make inferences or predictions about a population based on a sample of data from that population.

Normal Distribution

A continuous probability distribution shaped like a symmetrical bell, where most occurrences take place around the central peak and probabilities taper off equally towards both tails.