W5A: Application: Chi-square Tests for Three or More Groups

 

The chi-square test is perhaps the most popular test used in medical statistics. It can be used for comparing proportions among three or more groups, even when there are multiple levels within each group. It can also be used to test quantitative data when the numeric values are grouped into categories, as we’ve seen earlier.

 

To prepare for this Application Assignment, select a study from the Walden Library that illustrates the use of a chi-square test to compare three or more groups.

 

To complete this Application Assignment, that describes the study and addresses the following points:

• Provide the citation in APA format for the study you select.
• What were the variables used in this study that utilized the chi-square test?
• What were the results of the test?
• Interpret the meaning of the chi-square test results in the study you selected.
• Was this an appropriate test to use for this study?
• How was the sample size chosen for this study and was it appropriate?

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