In a Scientific Experiment, the Variable That Is Measured by the Experimenter

question 94

Multiple Choice

In a scientific experiment, the variable that is measured by the experimenter to determine whether it has changed is called the __________, while the variable that is manipulated by the experimenter is called the __________.

• A) dependent variable; independent variable
• B) independent variable; dependent variable
• C) experimental group; independent variable
• D) Dependent variable; operational definition

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Definitions:

Ground

typically refers to the solid surface of the Earth, but in electrical contexts, it is a reference point in an electrical circuit from which voltages are measured.

Lower Confidence Bound

The lower limit of a confidence interval, below which the true parameter value is expected to lie with a specific probability.

Population Mean

The average value of all the elements in a population, which is the total sum of all values divided by the number of values.

Margin of Error

A measure of the accuracy of a public opinion poll, representing the extent to which the results could vary from the true population values.