Question
1.When checking the homogeneity of variance assumptions for a t-test, which of the following graphical displays would be most helpful for you? A.Scatterplot B.Overall Boxplot/Box
1.When checking the homogeneity of variance assumptions for a t-test, which of the following graphical displays would be most helpful for you?
A.Scatterplot
B.Overall Boxplot/Box and Whiskers Plot for the outcome measure
C.Stacked bar charts on the outcome measure
D.Boxplot/Box and Whiskers Plot for the outcome measure by group
2.Under the assumptions of a one sample t-test, what is assumed to be normally distributed in the population?
A.The mean
B.The outcome measure
C.The standard deviations
D.The differences between outcome measures
3.Pearson's Product Moment Correlation Coefficient is a measure of the strength and direction of a
relationship between two variables.
A.Quadratic
B.Linear
C.Curvilinear
D.Asymptotic
4.An obtained correlation coefficient of 0.17 would be considered, under Cohen's rules of thumb, a
correlation.
A.Low
B.Moderate
C.Non-existent
D.High
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