A Partial Correlation Shows…

question 8

Multiple Choice

A partial correlation shows…

• A) if two variables are related after taking into account a confounding variable.
• B) if a confounding variable is correlated with other variables.
• C) if two variables are related before taking into account a confounding variable.
• D) if two variables are correlated in a non-linear fashion.

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Definitions:

Standard Deviation

A measure that is used to quantify the amount of variation or dispersion of a set of data values.

Standard Error

The typical variability or spread in the sampling distribution of a statistic, most commonly the mean, is referred to as the standard deviation.

T-statistic

The t-statistic is a ratio calculated from the difference between a sample mean and a population mean, divided by the standard error of the mean.

Null

Often refers to a hypothesis which assumes no significant difference or effect in a statistical analysis.