An experimenter computing the correlation between age and memory span would
a. be able to show that old age produces a decrease in memory span.
b. be able to determine that a third variable was involved.
c. make an error because age and memory span are measured on different scales.
d. be able to determine whether there is a relationship between age and memory span.
Question 2
A factorial design has two levels of factor A and three levels of factor B with six participants in each condition. The F-ratio for the interaction of A x B would have _____ degrees of freedom.
a. 2, 35
b. 2, 30
c. 6, 35
d. 6, 30
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