to correlate / to be correlated / a correlation
If two thingsย correlateย (or: are correlated), it means that thereโs a statistical connection between them. So, if the correlation is positive, it means when one thing goes up, the other goes up too. So, for instance, you might find that thereโs a positive correlation between self-confidence and success at university. If the correlation is negative, it means that when one thing goes up, the other thing goes down. So, perhaps youโll find a negative correlation between the amount of time spent watching TV and success at university.ย The most common statistical calculations used to show correlation are Pearsonโs rho and Spearmanโs rho (youโll learn about these when you study research methods). But you always have to be careful not to confuse correlation with cause and effect. Just because, for instance, thereโs a correlation between self-confidence and success at university, this doesnโt mean self-confidence causes success. It could be that success causes people to be confident or that both self-confidence and success have a common cause โ for instance, family background.
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The study found that the two sets of scores were positivelyย correlated.
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