In Order for a Study to Be a True Experiment

question 12

Multiple Choice

In order for a study to be a true experiment, you must _____ variable and _____ variable.

• A)manipulate an independent; measure a dependent
• B)manipulate a dependent; measure an independent
• C)randomly sample an independent; randomly assign a dependent
• D)randomly sample a dependent; randomly assign an independent

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Definitions:

Ranges

The difference between the maximum and minimum values in a data set, indicating the spread of values.

Coefficient of Variation

A standardized measure of dispersion of a probability distribution or frequency distribution, calculated as the ratio of the standard deviation to the mean.

Range

The difference between the largest and smallest values in a data set.

Coefficient of Variation

A standardized measure of dispersion of a probability distribution or frequency distribution, expressed as a percentage of the mean.