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[DOCX File]Chapter 7 Material.docx - SAGE Publications Inc
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The most widely used bivariate test is the Pearson’s r correlation coefficient. It is intended to be used when both variables are measured at either the interval or ratio level and each variable is normally distributed. However, sometimes we do violate these assumptions. If you do histograms of our three variables (see Chapters 4 and 9), you will notice that none are actually normally ...
corrélation de pearson

[DOC File]UNDERSTANDING THE PEARSON CORRELATION …
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Before learning about Spearman’s correllation it is important to understand Pearson’s correlation which is a statistical measure of the strength of a linear relationship between paired data. Its calculation and subsequent significance testing of it requires the following data assumptions to hold: interval or ratio level; linearly related; bivariate normally distributed. If your data does ...
pearson's correlation coefficient

[DOC File]Spearman’s correlation - statstutor
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What are the assumptions of Pearson’s Correlation? How might a failure to meet each assumption affect an analysis? What are the benefits of having a large sample size? What are the drawbacks, i.e. what should a researcher keep in mind upon finding that two variables are significantly correlated in a study with a large sample size? Spatial scales, levels of aggregation, and lack of ...
pearson correlation analysis

[DOCX File]Chapter Seven: Correlation and Regression - SSRIC
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Statistical test: Pearson correlation coefficient (r) Pearson’s r is Used For: Analyzing the strength of the linear relationship between two numerical variables in order to answer research questions where scientists want to know whether or how strongly two variables are related to each other, but they do not have experimental control over those variables and rely on already existing ...
pearson's product moment correlation

[DOC File]Statistics for Everyone
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pearson correlation coefficient formula

[DOCX File]Chapter Seven: Correlation and Regression
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The most widely used bivariate test is the Pearson’s r correlation coefficient. It is intended to be used when both variables are measured at either the interval or ratio level and each variable is normally distributed. However, sometimes we do violate these assumptions. If you do histograms of our three variables (see Chapters 4 and 9), you ...
pearson product moment correlation coefficient

Assumptions of pearson s correlation test