7 of 15 When you compute the average of the cross-products of Z-scores,it turns
ID: 2954146 • Letter: 7
Question
7 of 15
When you compute the average of the cross-products of Z-scores,it turns out that it is
never more than +1.0 or less than -1.0.
never more than +10.0 or less than -10.0.
never more than +1.0 or less than 0.
never more than +10.0 or less than 0.
8 of 15
When is the correlation coefficient zero?
It is never zero.
When there is no linear correlation.
When there is a perfect positive linear correlation.
When there is a perfect negative linear correlation.
9 of 15
Suppose that you are interested in the relation between thenumber of years working for a particular company and loneliness atwork. You survey 40 workers at this company and compute acorrelation between these two variables of -.90. This is considereda
weak positive linear correlation.
weak negative linear correlation.
strong positive linear correlation.
strong negative linear correlation.
10 of 15
When there is no linear correlation, the correlation coefficientequals
+1.0.
-1.0.
zero.
it depends on the scale of measurement.
never more than +1.0 or less than -1.0.
never more than +10.0 or less than -10.0.
never more than +1.0 or less than 0.
never more than +10.0 or less than 0.
Explanation / Answer
7. Never more than +1.0 or less than 0.8. When there is no linear correlation. 9. Strong negative linear correlation. 10. Zero.
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