Читать книгу The Handy Psychology Answer Book - Lisa J. Cohen - Страница 236

Correlation is another common means of evaluating the relationship between two variables. If one variable increases at the same time another one increases, the two variables are positively correlated. For example, gregariousness and number of friends are well correlated. The more gregarious a person is the more friends he or she is likely to have. Less gregarious people are likely to have fewer friends. If one variable increases while another decreases, the two variables are negatively correlated. Age and impulsivity are negatively correlated. The older someone gets, the less likely he or she is to engage in impulsive behavior. Likewise, younger people are more likely to engage in impulsive behavior. If there is no relationship between variables, they have no correlation. Month of birth and mathematical skills likely have no relationship. We do not anticipate that the month of birth would have any impact on a person’s mathematical ability.