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To explore whether watching violent television causes aggressive behavior, a researcher might measure television viewing, aggressive acts, and socioeconomic status (SES). If the initial positive correlation between violent television and aggression drops significantly when using partial correlation to statistically control for SES, it suggests that SES is a third variable driving the relationship. Conversely, if the correlation remains largely unchanged, it implies the relationship is independent of SES.

Example of Partial Correlation: Television Violence and Aggression

In a study examining the link between watching violent television and aggressive behavior, if the positive correlation between these two variables drops significantly after statistically controlling for socioeconomic status (SES), this suggests that SES is a third variable that was driving the original relationship.

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