10 Questions
What is the experimental design of the researcher's study?
Within-subjects
What is the purpose of the Sphericity test in this study?
To check for violations of the assumption of sphericity
Why is there no p-value for the factor lighting in the sphericity test?
Sphericity cannot be violated for the factor lighting
What is the purpose of the Mauchly's W test in this study?
To check for deviations from sphericity in the data
What is the advantage of using a within-subjects design in this study?
It eliminates the effect of individual differences
What can be concluded from the homogeneity of variances test result?
Male and female students' ratings have equal variances.
What can be said about the variances of the teacher ratings?
The variances of male and female students' ratings are equal.
What is the outcome of the homogeneity of variances test?
The variances are equal.
What can be inferred from the p-value of 0.99 in the homogeneity of variances test?
The variances are equal.
What is the implication of the homogeneity of variances test result?
The variances of male and female students' ratings are equal.
A researcher investigates the effects of lighting and alcohol on a maze navigation task, but is confused about the absence of a p-value for the lighting factor in the sphericity test. Can you explain why this is the case?
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