# Question

What is the compound symmetry assumption? What is sphericity? What information from the SPSS printout helps us to evaluate whether the sphericity assumption is violated?

## Answer to relevant Questions

Briefly, what is the difference between internal and external validity? When a researcher has an accidental or convenience sample, what kind of population can he or she try to make inferences about? Consider the following small set of scores. Each number represents the number of siblings reported by each of the N = 6 persons in the sample: X scores are: [0 1 1 1 2 7] a. Compute the mean (M) for this set of six scores. ...What is SEM? What does the value of SEM tell you about the typical magnitude of sampling error? a. As s increases, how does the size of SEM change (assuming that N stays the same)? b. As N increases, how does the size of SEM ...Consider this study conducted by Kim Mooney (1990) at the University of New Hampshire. SBP was measured at six points in time using a Finapres noninvasive blood pressure monitor: Time 1: When participants arrived at the ...Post your question

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