14. Homoscedasticity refers to the a. central tendency within one of the two dis

Question

14.     Homoscedasticity refers to the

          a.   central tendency within one of the two distributions

          b.   variability within both of the distributions

          c.   number of degrees of freedom

          d.   none of these

15.     When the underlying distribution of interval scores is extremely skewed, the appropriate correlational technique should be

          a.   the Pearson r

          b.   the t test

          c.   the Spearman r

          d.   none of these, since correlations cannot be computed for skewed distributions

Explanation / Answer

14. n statistics, a sequence or a vector of random variables is homoscedastic if all random variables in the sequence or vector have the same finite variance. This is also known as homogeneity of variance.

Hence answer is

b.   variability within both of the distributions

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