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How many groups are you allowed to have in an independent samples t-test? How many groups...

How many groups are you allowed to have in an independent samples t-test? How many groups are you allowed to have in an one-way ANOVA?

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Answer #1

The independent-samples t-test is used to compare the means of two unrelated or independent groups using the dependent variable (test variable) and the independent variable (grouping variable). These independent t-tests cannot be used to make comparisons between more than two groups. But, this can be done using the one-way analysis of variance (ANOVA) which compares the means of three or more unrelated or independent groups and determines any statistically significant differences between them.

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