# Summary

**Mean**—The average result of a test, survey, or experiment.

**Median**—The score that divides the results in half.

**Mode**—The most common result of a test, survey, or experiment.

**Significance**—The measure of whether the results of research were due to chance.

**p-value**—The way in which significance is reported statistically. For example, p<.01 means that there is a less than 1% chance that the results of a study are due to random chance.

**Correlation**—The degree to which two factors appear to be related.

**r-value**—The way that correlation is reported statistically. It's a number between –1 and +1. If r=0, there is little or no correlation between two variables. When the number is higher, the positive correlation between two variables is greater. Generally, r-values should be >.3 in order to report a significant positive correlation.