When Using the Value of R² to Calculate Effect Size

question 100

Multiple Choice

When using the value of R² to calculate effect size for an ANOVA, R² represents the proportion of the total variation of scores from the __________ that is accounted for by variation between the means of the groups.

• A)median of group 1
• B)mode of groups 2 and 3
• C)grand mean
• D)protected t tests

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