The Difference Between an Independent Variable and a Quasi-Independent Variable

question 30

Multiple Choice

The difference between an independent variable and a quasi-independent variable is that the quasi-independent variable lacks ______.

• A) random assignment
• B) parsimony
• C) validity
• D) reliability

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Definitions:

Normal Distribution

The probability distribution is evenly spread around the mean, signifying more frequent occurrences of data points near the mean than those that are more distant.

Exponential Distribution

The exponential distribution is a continuous probability distribution that is often used to model the time between events in a process that occur continuously and independently at a constant average rate.

Confidence Interval

A range of values, derived from sample data, that is likely to contain the value of an unknown population parameter with a specified level of confidence.

Margin Error

The amount of error that one can expect in an estimate, often expressed as a plus-or-minus figure and used in statistical analysis to indicate confidence in results.