The Three Types of Control Discussed When Dealing with Extraneous

question 21

Multiple Choice

The three types of control discussed when dealing with extraneous variables are:

• A)Physical, Mental, Statistical
• B)Physical, Design, Statistical
• C)Design, Mental, Statistical
• D)Physical, Emotional, Design

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Definitions:

Standard Deviation

A measure of the dispersion or variability within a set of numerical data, indicating how spread out the values are from the mean.

Variance

A statistical measure of the dispersion representing how much the data points in a data set diverge from the mean value.

Mean

The arithmetic average of a set of numbers, calculated by adding them all together and dividing by the number of numbers.

Variance

A statistical measure of the dispersion of data points in a dataset, quantifying how far each data point lies from the mean.