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Chi Square Analysis - Open University

Chi Square Analysis When do we use chi Square ? More often than not in psychological research, we find ourselves collecting scores from participants. These data are usually continuous measures, and might be scores on a questionnaire or psychological scale, reaction time data or memory scores, for example. And when we have this kind of data, we will usually use it to look for mean differences on scores between or within groups ( using t-tests or ANOVAs), or perhaps to look for relationships between different types of scores that we have collected ( correlation, regression). However sometimes we do not have this kind of data. Sometimes data will be a lot simpler than this, instead consisting only of frequency data.

Chi-Square Test of Association between two variables The second type of chi square test we will look at is the Pearson’s chi-square test of association. You use this test when you have categorical data for two independent variables, and you want to see if …

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