Szukana fraza: [Abstract = The article contains information how to interpret statistical data\: statistical significance, effect size and confidence intervals. Several heuristics are given how to usefully interpret the magnitude of the correlation Pearson's r, Cohen's d and relative risk. The vast majority of other effects is a derivative of the aforementioned. In addition, I also show the limitations of selected indicators, especially statistical significance. This article is intended as an aid especially for psychologists practitioners.]

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