Читать книгу Methods in Psychological Research - Annabel Ness Evans - Страница 91

If you earned a lot of money, would you be happy? Is there a relationship between income and happiness? If a researcher were interested in investigating a linear relationship between two continuous variables, he or she would use the Pearson product–moment test to calculate the correlation r. If you are getting a sense of déjà vu, it is probably because we talked about r as a descriptive statistic, but here we are talking about it as an inferential statistic. The important distinction is that the r reported as an inferential statistic will have an associated p value. For example, in a research article, you will read that a positive relationship was found between a measure of need for achievement and years of education and that the relationship was statistically significant. If the relationship was statistically significant, you will also see a p value reported.